KEEP ISRM FREE!
Pickett was an American manufacturer of slide rules characterized by all metal construction. The founders, Roswell Colvert Pickett and Arthur F. Eckel started out making all-metal slide rules in 1944 using magnesium and later evolved to aluminum as aluminum alloys became more machinable. Pickett slide rules were chosen to be used by the Apollo astronauts on their mission to the moon, as they were lighter than their wood core counter parts. Picketts are remembered by many later-day alumni for their characteristic yellow 'eye saver' color. Pickett also produced all-plastic low-end slide rules in the waning days of the their life. When the company folded with the rest of the industry, the slide rules were going to be sold as scrap metal to Mexico, but were rescued by Dick Schwartzer and later sold to collectors over the last 25 years. There are thousands of the plastic Pickett models hiding in warehouses waiting to be slowly feed into the collector market.



ISRM - Pickett PR-12 Projection Rule
Pickett PR-12 Projection Rule
Made in USA - 8" long to fit on overhead projectors
Scale
K, A [ C, CI, B ] D, L
Back: non-reversible


REF Pickett PR-? Trig Projection Rule
Pickett PR-? Trig Projection Rule
Made in USA - 12" long scales
Scale
K, A [ B, T, S, CI, C ] D, L
Back: non-reversible
Note: The top scan is without a backing and appears opaque. The lower one has a cloth over it to show the transparancy.
Archive - Scans provided by Cassou Olivier Collection, France


REF Pickett PR-13 Log-Log Projection Rule
Pickett PR-13 Log-Log Projection Rule
Made in USA - 12" long scales
Scale
LL0, LL1, DF [ CF, CIF, L, CI, C ] D, LL2, LL3
Back: non-reversible
Note: The top scan is without a backing and appears opaque. The lower one has a cloth over it to show the transparancy and a linear scale for sizing.
Archive - Scans provided by Cassou Olivier Collection, France


ISRM - Union Instruments MIL-C-4318-B Type A-1
Union Instruments MIL-C-4318-B Type A-1
Made in USA by Pickett
Front Scale
L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back scale
Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Archive - not in collection
USAF Manual 8.69Mb


REF - Pickett B-1
Pickett B-1 - Duplex - ca.1950
Made in Japan by Ricoh - The only Laminated Bamboo Pickett model 
Front Scale
LL0, L, A [ B, Cos S, SecT ST, T T, C ] D, sqr1, sqr2, LL0
Back - Slider
LL1, LL2, LL3, DF [ CF, CIF, CI, C] D, LL3, LL2, LL1
Archive


S362 Pickett Deci Point (Model 1) Duplex
Pickett Deci Point (Model 1) Duplex
Made in USA - Note:29 scales - ©1945 - Magnesium Stock
Front Scale
3√ #1, 3√ #2, 3√ #3, L [ T, T, ST, S Cos, CI, C ] D, √#1, √#2
Back Scale - with Decimal Keeper scales
Digits, C' [ D', T', T', ST', S' Cos', DN ] RN-DZ/DZ-RN, √ digits, 3√ digits
Note: This early version is thicker than later models of 2, 3, 4 etc..


S444 Pickett Model 2 Deci Log Log
Pickett Model 2 - Deci Log Log Duplex
Made in USA - Note:27 scales - ©1945/1947 - Magnesium Stock
Front Scale
3#1, 3#2, 3#3, L [ T, T, ST, S Cos, CI, C ] D, #1,   #2
Back Scale
1/N1, 1/N2, 1/N3, 1/N4 [ Digits, CF, CI, C] Co D, N1, N2, N3, N4




S052 Pickett Model 2
Pickett Model 2 - Deci Log Log Duplex
Made in USA - Note:27 scales - ©1945/1947 - Magnesium Stock
Front Scale
3#1, 3#2, 3#3, L [ T, T, ST, S Cos, CI, C ] D, #1,   #2
Back Scale
1/N1, 1/N2, 1/N3, 1/N4 [ Digits, CF, CI, C] Co D, N1, N2, N3, N4


Pickett Model 2

ISRM 14.09.08.02
Pickett Model 2 - Deci Log Log Duplex - sn3D07552
Made in USA - Note:31 scales (c)1949 - Magnesium Stock
Front Scale(Artwork #47)
3#1, 3#2, 3√ #3 #1, DF [ CF, T, ST, S Cos, CI, C ] D, DI, √#1, #2
, Back Scale(Artwork #183)
N1, 1/N1, N2, 1/N2, DF/M [ CF/M, L, CI, C] Co D, N3, 1/N3, N4, 1/N4


S487 Pickett Model 2-T - Dual Base LogLog Reciprocal
Pickett Model 2-T - Dual Base Log Log Reciprocal Scale
Made in USA - 28 scales - Aluminum Stock, die cast braces
Front Scale
3#1, 3#2, 3#3, DF [  CF, T Cot, ST, S Cos, CI, C ] D, DI, √ #1,   #2
Back Scale
LL1 +00D/-.00D, LL2 +.0D/-.0D, DF/M [ CF/M, L, CI, C] D, LL3 +.D/-.D, LL4 +D./-D.
Original Owner: Theodore Mathues, Donora, Pennsylvania



P&E (Pickett & Eckel) Model 3 Deci Log Log Vector 1947 V1

ISRM 13.10.09.05
P&E (Pickett & Eckel) Model 3 Deci Log Log Vector, snC036119
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947
Note:Early Magnesium Stock with serial number on cursor blocks
Note: No Logo at its introduction. Gray Rubber sleeve.
Front Scale
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale
1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Original Owner was in New Zealand
Gift of Phillip Rodley, Upperhutt, New Zealand.


P&E (Pickett) Model 3 Deci Multiphase Log Log 1947 V2

ISRM 13.04.10.02

Robert J. Smith, circa 1994
P&E (Pickett) Model 3 Deci Multiphase Log Log sn HC037844
Made in USA by R.C. Pickett & A.F. Eckel - 30 scales - ©1947 - Magnesium Stock.
Note P&E logo with text "TRADE MARK" around triangle
Front Scale (artwork D-11-1)
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale (artwork E-10-1)
1/N1, 1/N2, 1/N3, 1/N4, DF [ CF, Digits, CI, C] Co D, N1, N2, N3, N4
Donated by Jeff Smith, the son of its original owner, Robert J. Smith.
Robert J. Smith (1923-1997). Born in Philadelphia, raised in Cleveland, died in Farmington Michigan. Bob was a die cast engineer & past president of the Society of Die Cast Engineers. He was a World War II Navy veteran who entered service before completing high school. After the war, he obtained his high school degree and went on to Case Institute in Cleveland studying mechanical engineering. Bob worked his entire life in the auto industry with "Tier 1" suppliers to the Detroit major manufacturers. His son writes: "A brilliant engineer, he would be proud to have this old engineering tool displayed at the Slide Rule Museum." Photograph show Bob on left with his best buddy Jack, doing what they enjoyed most - horsing around on the golf course.



Pickett Model 3 Deci Multiphase Log Log 1949 V3

ISRM 12.09.01.01
Pickett Model 3 Deci Multiphase Log Log sn F122589
Made in USA -  30 scales - ©1947 - Magnesium Stock.
Note text "TRADE MARK" around logo
Front Scale (artwork 301)
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale (artwork 253)
1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, CI, C] Co D, N1, N2, N3, N4
Donated by Laurie Deiter of Louisville, CO daughter of H. McFadden
H. McFadden used this slide rule in his work as an engineer.


S226 Pickett Model 3 Deci Multiphase Log Log 1950 V4
Pickett Model 3 Deci Multiphase Log Log
Made in USA -  30 scales - ©1947 - Magnesium Stock
Note: Newer Logo (no "TRADE MARK" text)
Front Scale
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale
1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Digits, CI, C] Co/D, N1, N2, N3, N4


Pickett Model 3-T Dual Base Log Log c1951 V5

REF
Pickett Model 3-T Dual Base Log Log c1951 V5
Made in USA -  30 scales - ©1947 - Magnesium Stock
Note: Newer Logo (no "TRADE MARK" text). "-T" used for the first time in the model number in anticipation of "-ES" being produced. "Deci Multiphase" replaced by "Dual Base". After this, the model will be called N3-T and made of aluminim with plastic cursors.
Front Scale
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos, CI, C ] D, DI,#1,  #2
Back Scale
1/N1, 1/N2, 1/N3, 1/N4, DF/M [ CF/M, Digits, CI, C] Co/D, N1, N2, N3, N4
Scan provided by Olivier Cassou, France


Pickett N3-ES Power Log Exponential (1959)
ISRM 14.07.02.66
Pickett N3-ES - Power Log Exponential
Made in USA - Aluminum Stock, Round Black Logo, Square finger braces, Inverse scales use left arrow: '<'
Front Scale
3#1, 3#2, 3#3, DF [ CF, T <Cot, ST, S <Cos, <CI, C ] D, <DI,#1,  #2
Back Scale
LL1-.000>, LL2-.00, LL3-.0, LL4-0, DF/M [ CF/M, Digits, L, <CI, C ] D, LL1+.000, LL2+.00, LL3+.0, LL4+0
Gift of Ed Millis Collection, Dallas, Texas


Pickett N3-ES Power Log Exponential

ISRM 11.08.23.01
Pickett N3-ES - Power Log Exponential
Made in USA - Aluminum Stock, Modern Logo, Curved finger braces.
Front Scale
√  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by John L. Crawley III, Newport News, Virginia John used this pristine slide rule in at Virginia Military Institute (VMI) up until his senior year, 1973-74, when he obtained an electronic calculator. His name and college is written inside the sleeve flap.


REF Pickett N3P-ES Power Log Exponential (NOS)

ISRM 13.02.20.06
Pickett N3P-ES - Power Log Exponential (NOS)
Made in USA - Copyright 1960
Front Scale
√  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0



S129 Pickett N3-T Power Log Exponential
Pickett N3-T - Power Log Exponential
Made in USA
Front Scale
√  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0


Pickett N3P-T Power Log Exponential (NOS)

ISRM 13.02.20.07
Pickett N3P-T - Power Log Exponential (NOS)
Made in USA - Copyright 1959 - Aluminum Stock
Front Scale
√  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0


REF Pickett X-3 Executive Power Log Exponential
Pickett X-3 Executive Power Log Exponential
Made in USA
Front Scale
√  #1,   #2, K, A [B, ST, S/Cos, T1, T2, CI, C] D, DI, 3√  #1, 3√  # 2, 3√  #3
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, Ln, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Archive - Scan provided by Clay Castleberry Collection


S196 Pickett Model 4 Vector Hyperbolic Deci-Log Log
Pickett Model 4 Vector Hyperbolic Deci-Log Log
Made in USA - copyright 1947 - Magnesium Stock
Front Scale
1/N1, 1/N2,1/N3,1/N4,D [ CF, Th, Sh, Sh, CI, C ] D, N1, N2, N3, N4
Back Scale
3#1, 3#2, 3#3, DF [ CF, T, ST, S,  CI, C ] D, DI, √ #1,   #2
Model 4 Instructions 16.8MB PDF,Archive - Scan provided by Marion Moon.


S544 Pickett Model 4 Vector Hyperbolic Deci-Log Log
Pickett Model 4 Vector Hyperbolic Deci-Log Log sn 12I1682
Made in USA - copyright 1949 - Magnesium Stock
Front Scale
N1, 1/N1, N2, 1/N2, DF/M [ CF/M, Th, Sh, Sh, L, CI, C ] D,N3, 1/N3, N4,1/N4
Back Scale
3#1, 3#2, 3#3, DF [ CF, T Cot, ST, S Cos,  CI, C ] D, DI, √ #1,   #2



REF Pickett 4-T Vector Hyperbolic Dual Base Log Log
Pickett 4-T Vector Hyperbolic Dual Base Log Log - 1959
Made in USA - Aluminum Stock
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, T, T1, T2, ST, S Cos,  CI, C ] D, DI, √ #1,   #2
Archive - The owner of this 4T received it from Pickett as a warranty replacement for a 1950 4T that had faded scales. 


S353 Pickett 4-T Vector Dual Base Log Log
Pickett 4-T Vector Dual Base Log Log - 1953
Made in USA - Magnesium Stock
Front Scale (Note: Has Ln and CIF scale)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S Cos,  CI, C ] D, DI, √ #1,   #2


S423 Pickett Model 4-ES Vector Dual Base Log Log (1957)
Pickett Model 4-ES Vector Dual Base Log Log
Note: Aluminum Stock, Cast metal cursor and clamshell end plates. Inverse scales noted with left arrow '<'.
Front Scale (artwork #302)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300)
3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2


Pickett Model 4-ES Log Log Vector Hyperbolic Dual Base (1958)
ISRM 14.07.02.64

Pickett Model 4-ES Log Log Vector Hyperbolic Dual Base - 1958-62
Made in USA in Chicago
Note: Aluminum Stock ,Square Braces, extended nylon cursor bars, flat lens. Inverse scales noted with left arrow '<'.
Front Scale (artwork #306)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH1, SH2, L, <CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #300)
3#1, 3#2, 3#3, DF [ CF, T1, T2, ST, S Cos,  <CI, C ] D, <DI, √ #1,   #2
Gift of the Ed Millis Collection, Dallas, Texas.


Pickett N4-ES Vector-Type Log Log - 1959

ISRM 12.08.05.02


Lyle Wells with wife Antoinette, Belgium, 1946
Pickett N4-ES Vector Log Log Dual-Based Speed Rule 1958-1959
Made in USA - Note: Round Black Logo with artwork code. Inverse scales in RED
Front Scale (artwork #307)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #306)
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Donated by Lyle Wells of Henderson, Nevada
Lyle Wells was born May 26, 1923. He married his wife, Antoinette, in 1946 in Belgium while he was in the Army. They were married for 65 years and have one son. Lyle was drafted on March 12, 1943 and served until 1953 spending most of his time in France, Belgium and Germany as a master sargeant in the 515 engineer outfit. After returning to the United States, Lyle was an operating engineer for over 20 years and also owned two businesses. He was a recreational pilot and remembers needing to have a slide rule in order to obain his pilot's license. Although he was only able to go to school until the 8th grade before having to earn a living. Lyle remembers that his wife, who spoke 5 languages, was always better than him with the slide rule. At 89 years of age as of 2012, Lyle rides his mountain bike an average of 10-15 miles per day and the only pills he takes are vitamins. (Biography contributed by Donna Silva of Wishing Well Glass.


Pickett N4-ES Vector-Type Log Log 1960-62

ISRM 10.12.12.02

Andrew (Andy) David Keller (1942-2010)
Pickett N4-ES - Vector-Type Log Log Duplex - 1960-62
Made in USA - Aluminum Stock - Black Round Logo. No artwork codes. Narrow nylon cursor blocks.
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Donated by Andrew Keller, Longmont, Colorado Andrew (Andy) David Keller (1942-2010) had a long career as an ergonomist, industrial psychologist and human factors engineer, working 17 years for IBM. He served in the US Army 1966-1968 and made design and safety improvements for a personnel carrier which were adopted by the Army. Andy earned his undergraduate degree from Mankato State University and his Masters degree from the University of South Dakota. A strong community citizen, Andy served in his church and was an active leader of the local chapter of the Society of Manufacturing Engineers. Andy was a contributor of numerous slide rules to the International Slide Rule Museum which can be found in the Pickett and Post galleries. He died in 2010 and was survived by his wife Anne in Longmont, Colorado.


Pickett N4-ES Vector-Type Log Log (1962)

ISRM 14.01.10.45

Pickett N4-ES Vector Log Log Dual-Based Speed Rule - 1962-64
Made in USA by Pickett in Chicago
Note: Square stamped braces, Round style 3 open Logo with artwork code. Inverse scales in RED
Front Scale (artwork #307)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (artwork #306)
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Gift of the Bill Wehrend Collection, Palo Alto, California.


Pickett N4-ES Vector-Type Log Log 1964-75

ISRM 04.08.04.01

Stan Nolte
Pickett N4-ES Vector-Type Log Log Dual-Based Speed Rule 1964-75
Made in USA - Aluminum Stock - Modern Logo. No artwork codes.
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Stan Nolte used this slide rule throughout his freshman and sophomore years in the School of Engineering at Arizona State University. He received a B.A. in mathematics in 1975 and an M.S. in computer science in 1980 from the University of Colorado in Boulder. He began his programming career at the National Center for Atmospheric Research, and then worked for several years in small high-tech startup companies before becoming self employed in 1991. He currently consults for the oil and gas exploration industry, and writes PC, Macintosh, and iPhone software for his own company, My Edge Software, LLC.


REF Pickett N4P-ES Vector-Type Log Log
Pickett N4P-ES - Vector-Type Log Log Duplex
Made in USA
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Archive


ISRM Pickett N4-T Vector-Type Log Log

ISRM 09.10.21.01

Marten C. Jensen
Pickett N4-T - Vector-Type Log Log Duplex
Made in USA - 1957 - Aluminum Stock -
Front Scale (Artwork code 257)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale (Artwork code 258)
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Donated by Marten C. Jensen, Redlands, Ca.. Born in New York City in 1932. Korean conflict veteran in the U.S. Air Force and later discharged from Holloman AFB. He attended New Mexico State University under the GI Bill. In 1958, he graduated with a BS degree in Electrical Engineering. During his time at college, Marty used this Pickett 4-T quite extensively. Marten is in the ISRM SR Who's Who gallery for donating his personal collection to ISRM.


ISRM Pickett N4-T Vector-Type Log Log 1962

ISRM 13.04.10.01

Jeff and Carol Smith, 2009
Pickett N4-T - Vector-Type Log Log Duplex
Made in USA - 1962 - Aluminum Stock -
Front Scale (Artwork code 307)
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1, #2
Back Scale (Artwork code 308)
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Donated by Robert "Jeff Smith, Fort Atkinson, Wisconson.
This slide rule was owned by Robert J. Smith Jr. ("Jeff"), Lt Col USAF (retired). It was purchased at the bookstore at Michigan College of Mining & Technology (now known as Michigan Tech University) and was used throughout the four year bachelor-of-science program, metallurgical engineering studies, 1962 through 1966. After graduation, it was put to work for a short time calculating tensile, yield, compression and torsion test results at the Chevrolet Motor Division central laboratory located at the Detroit Forge. A USAF career followed shortly thereafter and the old Pickett lounged around in its case for decades, being overcome by calculators & computers. Jeff writes: " I recently re-discovered my slide rule during a spring cleaning, it deserves a better life at the Slide Rule Museum." The photograph is of Jeff and his wife, Carol, from a 2009 F-111 aircrew reunion in Fort Worth, TX.


Pickett N4-T Vector-Type Log Log (NOS)

ISRM 13.02.20.04A
Pickett N4-T - Vector-Type Log Log Duplex (NOS)
Made in USA - 1959 - Aluminum Stock - Artwork code 300
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Note: This is a 'Twin Pack' set with a 10" and 6" Dual Base LogLog Slide Rules, which included an N600-T, shown below.



REF Pickett N4P-T Vector-Type Log Log
Pickett N4P-T - Vector-Type Log Log Duplex
Made in USA
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Archive



REF Pickett X-4 Executive Vector Type Log Log
Pickett X-4 Executive Vector Type Log Log
Made in USA
Front Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.
Back Scale
3#1, 3#2, 3#3, DF [ CF, CIF, T1, T2, ST, S CosCI, C ] D, DI, √ #1,   #2
Archive - Scan provided by Clay Castleberry Collection


REF Pickett Model 6-T Statistical Quality Control
Pickett Model 6-T Statistical Quality Control
Made in USA by Pickett
Front Scale
A2, D3, D4, DF [ CF, d2, A0, D0, CI, C] D, LL3, LL2, LL1
Back Scale
LL0, LL00, P0, A [B, F, F, S, T, C ] D, B0, f, L
Archive - Scan donated by Orion Miller, Memphis, TN
Instructions (7.08MB) - Scan by Steve Treadwell



REF Pickett Model 7-T Service Pipe Line Company
Pickett Model 7-T Service Pipe Line Company
Made in USA by Pickett for S.P.L. Co. - 1953
Distributed by L.L. Ridgeway Co. (Oil Industry)
Front Scale (Streamline Flow)
H, P [ Miles, Flow, Viscosity, (4) Pipe ID] BBLS/Hr, BBLS/Day
Back Scale (Turbulent Flow)
P [ Miles, Flow, (2) Viscosity, (4) Pipe ID] BBLS/Hr, BBLS/Day
Archive - David Hecht Collection


Pickett 8-T McGann Variable Density Flow Computer

ISRM
Pickett 8-T McGann Variable Density Flow Computer
Made in USA by Pickett for McGann Industries - 1959
Front Scale
Pt/P,, Tt/T, λ, M, J4, J3 [ λ4, λ3, λ2, λ1, λ0 ] J2, J0-1&M, λ, Tt/T, Pt/P
Back Scale
LL1+.00D/-.00D, LL2+.0D/-.0D, DF/m [ CF/m, TH, SH, Ln, L, CI, C ] D, LL3+.D/-.D, LL4+D./-D.



REF Pickett Model 12 Turbulent Flow Sliderule
Pickett Model 12 Turbulent Flow Sliderule
Made in USA by Picket for C.F. Braun & Company, Alhambra, CA - 1957
Front Scale (for Liguids)
K1 Pipe size, V1 Specific Gravity, K3 Fittings, V4 velocity [ Viscosity CP, K2 Equiv Length, V3 Pipe size (velocity), GPM, LB/HR. Pipe Size, L/100. FT ] Pressure Drop
Back Scale (for Gases)
V2 ACFM, V1 LB/HR, V3 Pipe Size [ Discosity CP, Density LB.FT3, Steam Temperature, V4 Velocity, LB/HR, Pipe Size, L/100.FT ] Pressure Drop
Note: Has unique notations to show sequential steps to perform calculations, using Δ1, Δ2, Δ3, etc.
Archive - Scan donated by Clay Castleberry


ISRM Pickett Model 14 US Military
Pickett Model 14 US Military
Made in USA
Front Scale
LL1+/-, LL2+/-, A [ B, T Cot, ST, S Cos, K,  C ] D, LL3+/-, LL4+/-
Back Scale
Opposite angle Deg, Deg,  Mils, Mils [ Apex angle, Tan CoTan, Sin-Tan, Sin CoSin, Base C ], Distance D, A


REF Pickett N15-T GIW Hydraulic 1961

Pickett N15-T GIW Hydraulic - 1961
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale
V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale
SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
Archive - Scan provided by Ronald E. Kuc Collection


REF Pickett N15-T GIW Hydraulic 1970 Prototype

Pickett N15-T GIW Hydraulic - 1970 Prototype
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale
V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale
SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
SR Donated by Reab Berry of GIW Industries
Note: Notice the smooth end braces (no ridges) and a one-of-a-kind cursor that has not been seen on a Pickett before. This was a preliminary change from the 1961 version to the 1970 production version.


REF Pickett N15-T GIW Hydraulic 1970

Pickett N15-T GIW Hydraulic - 1970
Made in USA by Pickett for GIW Industries, Designed by Danforth W. Hagler
Front Scale
V2/2g(FT), VEL (FT/SEC) [ C(Hf) TONS/HR, % SOLIDS, SP.CR.SLU., PIPE ID (VEL), PIPE ID (Hf) ] CPM, TONS/HR., hf(FT/100')
Back Scale
SFM, HEAD3/4, HEAD [ Φ, GPM, BHP/sp. gr., IMPELLER DIA.] RPM. PUMP % EFF.
SR and 1970 Manual Donated by Reab Berry of GIW Industries
1961 Manual Donated by Dan Hagler(designer of SR) 17.4MB PDF
Note: In 1960, Danforth W. Hagler, who's family ran Georgia Iron Works, Grovetown, Ga., conceived and designed the GIW Hydraulic Slide Rule. His brother Tom, wrote the manual. Before its invention, each engineer in the engineering department had a large, thick notebook with about 100 pages of graphs. The slide rule incorporated many hydraulic pump and pipeline formulas. One side of the slide rule contained engineering formulas involved with performance of a pump while the other side contained everything necessary for pipeline and production calculations.


REF Pickett N16-ES Electronic
Pickett N16-ES Electronic Duplex
Made in USA - 1960 - Designed by Chang Street
Front Scale
SH1, SH2,TH, DF [ CF, L,  S Cos,  ST, T T, CI, C ] D, LL3, LL2, LL1, Ln
Back Scale
Θ Θ, db,  D or Q, XL , Zs or Xc [ C or L, F, λ, ω, T, TR' or X'c, Cr ] Lr, db, CosΘ
Archive - Not in Collection
1.74MB


REF Pickett Model 17 Radiated Light Energy
(lasers)
Pickett Model 17 Radiated Light Energy (lasers)
Made in USA - 1970 - For Electro Optical Industries
Front Scale
Q0-, Qλm, tf, tc, T  [ Qλ1/Qλm, Qλ2/Qλm, M(Qλm) M(Q0- ), Qλ/Q0-, Qλ/Q0- ] λ1λ2,  V1, V2, Eλm, ev
Back Scale
 H0-, Hλm,   tf, tc, T  [ Hλ1/Hλm, Hλ2/Hλm, M(Hλm) M(H0- ), H0-λ1/H0-, Hλ2-∞/H0-, C]  D, λ1λ2,  V1, V2, Vn/√R∆f, V/Hz-Ω
Archive - Rod Lovett Collection


Pickett C18-T Microwave Transmission Dual Base LL

ISRM 14.07.02.46

Pickett C18-T Microwave Transmission Dual Base LL
Made in USA - 1965 - For Collins Radio
Front Scale
Θa, Ga, Gp,Ls, A [ B, BchTCΦf<10, AE, Φf>10Lp, d1'/d, C ] D, Pr Ndbrnc0, Ndba0, Npwp, FM-S/N, V-S/N
Back Scale
 LL0 +.001/-.001,  LL1 +.01/-.01, DF [ CF, Ln, L, S, ST, T, CI, C ] D, LL2 +.1/-.1, LL3 +1.0/-1.0
Gift Of Ed Millis, Dallas, Texas.


Pickett C19-T Microwave Transmission
Dual Base LL Speed Rule

ISRM


Pickett C19-T Microwave Transmission Inst. Inserts

Pickett C19-T Microwave Transmission, Dual Base LL Speed Rule
Made in USA - 1965 - For Collins Radio
Front Scale
Θa, Ga, Gp,Ls, A [ B, Bch,TC, Bif, AE, Φf<10, Φf>10Lp, d1'/d, C ] D, Pr Ndbrnc0, Ndba0, Npwp, S/N(unwntd), V-S/N
Back Scale
 LL0 +.001/-.001,  LL1 +.01/-.01, DF [ CF, Ln, L, S Cos, ST, T Cot, CI, C ] D, LL2 +.1/-.1, LL3 +1.0/-1.0
Original Owner: Bob MacKenzie, Canby, Oregon. Bob was an electronics engineer who retired from Hughes Aircraft.
Donated by James H. Price, Tacoma, Washington
James' background is in aerospace engineering and obtained this from its original owner. James was the Senior Vice President of Software Development at C/S Solutions, Inc. He received a BSAA in Aeronatics from the University of Washington (1985) and a MSAE from the University of Southern California (1988).


Pickett Model 20 Basic

ISRM 09.01.12.91
Pickett Model 20 Basic
Made in USA - Scales printed on sheet aluminum
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Donated by David Hecht, Alexandria, Virginia



P077 Pickett Model 20 Basic
Pickett Model 20 Basic
Made in USA - Scales printed on painted sheet aluminum
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank


REF Pickett Model 22 Real Estate
Pickett Model 22 Real Estate
Made in USA
Front Scale
Building Area [ Cost per sq.ft., Percentage of total] Depreciation
Back: Blank
Archive - Not in collection


REF Pickett Model 23 Real Estate

Instructions (2.04 MB PDF)
Pickett Model 23 Real Estate
Made in USA
Front Scale
Building Area [ Cost per sq.ft., Percentage of total] Depreciation
Front Scale
K, A [ B, CI, C ] D, L
Archive - Photo and scans donated by Ron Kuc collection


P206 Pickett Model 61 - Promotional
Pickett Model 61 - Promotional
Made in USA - Reda Pump Co., Bartlesville, Oklahoma
Construction: All plastic w/ black braces
Front Scale
K, A [ B, CI, C ] D, L
Back Adv: Reda Pump Co., Bartlesville, Oklahoma


Pickett Model 61 - V1 Black Braces

ISRM 11.11.13.01
Pickett Model 61 - Version 2
Made in USA - all plastic w/ Black braces
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank


Pickett Model 61 - V2 Grey Braces

ISRM 11.11.13.02
Pickett Model 61 - Version 2
Made in USA - all plastic w/ grey braces
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank


Pickett Model 61-C Concrete Estimator

ISRM 12.06.24.10
Pickett Model 61-C Concrete Estimator
Made in USA - all plastic w/ grey braces
Front Scale
K, A [ B, CI, C ] D, L
Back:
A (Thickness) [ B (Width or Height), C (Length) ] D (Volume in Cu. Yds.)
Donated by the Huang Collection..


P089 Pickett Model 62 Trig
Pickett Model 62 Trig
Made in USA - Plastic w/ metal ends
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
[ S, ST, T ]


Pickett Model 62 Trig - Promotional

ISRM 12.06.24.11
Pickett Model 62 Trig - Promotional
Made in USA - Promotional for Westville Electric Co., New Haven, Connecticut
Construction: Plastic Duplex w/ metal ends
Front Scale (artwork 38)
K, A [ B, CI, C ] D, L
Back Scale
[ S, ST, T ]
Donated by the Huang Collection..


Pickett 80

ISRM 04.04.22.03
Pickett 80 - Simplex
Made in USA
Front Scale
T, K, A [ B, CI, C ] D, L, S
Back: Blank


Pickett Model 100 Douglas Sky Rule 1951

ISRM 14.07.02.73

Instructions (6.22MB PDF)
Scan by Steve Treadwell
Pickett Model 100 Douglas Sky Rule - Rounded Braces
Made in USA for Douglas Aircraft - Copyright 1952
Front Scale (A side)(Artwork #56)
Dynamic Pres., Temp Rise [ Static Pres., Pres. Alt, Density Alt., C ] D, True Mach. TAIS
Back Scale (B side)
Impact Pres., Std. Temp., Pres. Alt. [ Temp. Venier, Pres. Alt. ] True Mach No., Dial Airspeed. ] Blank
Gift of Ed Millis of Dallas, Texas


REF Pickett Model 100 Douglas Sky Rule (1952)
Pickett Model 100 Douglas Sky Rule (square braces)
Made in USA for Douglas Aircraft - 1952
Front Scale (A side)(Artwork#52)
Dynamic Pres., Temp Rise [ Static Pres., Pres. Alt, Density Alt., C ] D, True Mach. TAIS
Back Scale (B side)
Impact Pres., Std. Temp., Pres. Alt. [ Temp. Venier, Pres. Alt. ] True Mach No., Dial Airspeed. ] Blank
Archive - Herman's SR Catalogue

Pickett 101-C Dial Rule (1962)

ISRM 10.09.13.02
Pickett 101-C Dial Rule - 10.2cm dia (1962)
Made in USA - c1962
Front Scale: C, CI, A, AF, L, FA, LL2, LL1, DS, DT, M
Back Scale: C, S, ST, T, Fractions-Decimal
Donated by Mike Medlock, Greenwood, Indiana
As Mike prepared to enter Purdue in 1962, his brother Allen was completing his B.S. in Mathematics - also at Purdue. His brother decided a great gift for his younger brother as he began his college career would be a slide rule. Just to be different he decided to purchase a circular slide rule, certainly a oddity at the time. Mike used the slide rule throughout his college career and was amused by the odd looks from fellow engineering students. He graduated with a B.S. Chem. Eng. from Purdue University 1967.


Pickett 101-C Dial Rule (c1964)

ISRM 12.05.02.04

See other slide rules from this talented family in the Circular, K&E, Ricoh, and Post Galleries..

Anne Kilby with mother Ruth Moira Kane (1959)
Pickett 101-C Dial Rule - 10.2cm dia (c1964)
Made in USA, Aluminum disk with 3 plastic cursors
Front Scale: C, CI, A, AF, L, FA, LL2, LL1, DS, DT, M
Back Scale: C, S, ST, T, Fractions-Decimal
Note: Scale Labels embossed in RED on transparent cursor
Owned and donated by Ann Kilby, Kingston, Washington.
Ann's parents were scientists at Livermore Labs so she was competent with slide rules at an early age. She used this one while in high school and during her first few years at college. Her university education led her down paths of Zoology, Secondary-education, Physical chemistry, Sinology and Psychotherapy, culminating in a profession of healing arts and counseling.
Expanded Family Biography of Wallace and Ruth Kane and daughter Ann Kilby (7.09MB)


C05 Pickett 103-ES Mark-Up Calculator
Pickett 103-ES Mark-Up Calculator - 10.2cm dia
Made in USA
Front Scale:
C, CI, A, AF, L, FA, fraction-decimal
Back Scale
Quantity, Cost Basis, Selling Price (mark up)


REF Pickett 104-C Profit Calculator
Pickett 104-C Profit Calculator - 20.3cm dia
Made in TBD
Front Scales:
% of Margin of Profit on Selling Price
% of Profit Mark-Up from Cost Price
[List Price]
% of Discount from List Price
Back: blank
Archive - Ted White Collection


REF Pickett 105-C Profit Calculator
Pickett 105-C Profit Calculator - 9.9cm dia
Made in TBD
Front Scales: % of Margin of Profit on Selling Price
% of Profit Mark-Up from Cost Price
[List Price]
% of Discount from List Price
Back: blank
Archive - Ted White Collection


REF Pickett 106-C Proportional Scale
Pickett 106-C Proportional Scale - 14.6cm dia
Made in TBD
Front Scales: Reproduction Size
[Original Size]
Percentage of Original Size
Number of Times Reduced
Back: blank
Archive - Ted White Collection


C14 Pickett 107-ES
Pickett 107-ES - 8cm dia
Made in Japan
Front Scale:  [ L, CI, C] D, A, K
Back Scale: Equivalents
Archive - Ted White collection


REF Pickett 108-ES
Pickett 108-ES - 8cm dia
Made in Japan
Front Scale:  K, A, D [ C CI L ]
Back Scale:  D, T, S, T, S, T, TS
Archive - Ted White Collection


ISRM Pickett 109-ES
Pickett 109-ES - 10.8cm dia
Made in Japan
Front Scale : K, A, D, [ C, CI, EI(spiral)]
Back Scale: L, DI, D, T, S, T, S, T, TS



REF Pickett 110-ES
Pickett 110-ES - 12.8cm dia
Made in Japan
Front Scale : LL3, LL2, LL1, LL0, K, A, D [ C, CI, B, EI (spiral)]
Back Scale: D(spiral), D, V2 [ V1, C(spiral), G, T, S, T, S, T, TS, L ]
Archive - Ted White Collection


REF Pickett 111-ES
Pickett 111-ES - 12.8cm  dia
Made in Japan
Front Scale: LL3, LL2, LL1, LL0, K, A, D [ C, CI, EI (spiral) ]
Back Scale: /LL3, /LL2, /LL1, /LL0, L, DI, D, T, S, T, S, T, TS
Archive - Ted White Collection


REF Pickett 112C Metric Converter (4 base disks)
Pickett 112C Metric Converter (4 disks)
Made in USA - 15.2cm dia
All with C&D scales, including conversions for:
Orange Disk - Linear measure
Maroon  Disk - Dry measure
Yellow Disk - Liquid measure
Blue Disk - Weight measure
Archive - Ted White Collection


S525 Pickett Microline 115-T - Decimal Keeper
Pickett Microline 115-T - Decimal Keeper
Made in USA - 1.9" Wide version
Front Scale
D*, X [ Y, CI, C ] D, A, L
Back: Blank
Original Owner: William Baker


ISRM Pickett Microline 115 - Decimal Keeper
Pickett Microline 115 - Decimal Keeper
Made in USA - Narrow version
Front Scale
D*, X [ Y, CI, C ] D, A, L
Back: Blank
Donated by David Hecht, Alexandria, VA


Pickett 120 Trainer

ISRM 2009.10.27.02

Pickett 120 Trainer - 1964
Note: This was Pickett's first attempt at a low cost all plastic slide rule. The stock was constructed with white laminations over a black substrate with black plastic end braces glued to the stock.
Made in USA
Front Scale: K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Scans and Photos Contributed by Vern Estes.
This model was sold in the 1964 Estes Industries Model Rocketry Catalog. Vernon Estes founded the company on encouragement from G. Harry Stine, who founded the National Association of Rocketry (NAR) in 1958. A purchase order shows that 200 of these were purchased from Pickett for the catalog. Many youths (including the ISRM Curator) were introduced early to slide rules through the Estes Technical Reports to calculate model rocket performance.
Pickett No120 Trainer (2nd design - Grey braces)
ISRM 14.07.03.59
Pickett No120 Trainer (2nd design - Grey braces).
Note: Second design of low cost plastic stock and slide. Now the stock is one piece of cut sheet plastic with grey braces glued to stock.
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Donated by the Ed Millis Collection, Dallas, Texas.


Pickett No120

ISRM 12.06.24.17
Pickett No120
Note: First design of one piece injection molded stock and slide.
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Blank
Donated by the Huang Collection..


Pickett Microline 120-ES (USA)

ISRM 12.06.24.07
Pickett Microline 120-ES - Simplex
Made in USA - 1.9" Wide version
Front Scale
K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank

Retail Box End (ISRM Collection)

Donated by the Huang Collection.


Pickett Microline 120-ES (Mexico)

ISRM 14.09.21.06
Pickett Microline 120-ES - Simplex
Made in MEXICO - 1.9" Wide version
Front Scale
K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank
Gift Of Edward T. Wright, Odenton, Maryland.


ISRM Pickett Microline 120-T
Pickett Microline 120-T - Simplex
Made in USA - 1.9" Wide version
Front Scale
K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Blank

Retail Box End


S317 Pickett 121 Trig Conversion
Pickett 121 Trig Conversion
Made in USA - 1.5" Wide version
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back: Equivalents


Pickett Microline 121-T

ISRM 12.03.02.01
Pickett Microline 121-T - Simplex
Made in Mexico - 1.9" Wide version
Front Scale
K, A [ B, S Cos, T Cot, CI, C ] D, L
Back: Equivalents
Donated by members of the Oughtred Society
Retail Card Picket PN 121C-T


ISRM Pickett 125 (1958-1962)
Pickett 125 (Narrow)
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back Scale: Fractions=Decimals [ S Cos, ST, T Cot, C ] D


ISRM Pickett 140 Log Log (1958-1962)
Pickett 140 Log Log
Made in USA - 22 scales, Narrow Stock
Front Scale
LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back - Slider
L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2

Sleeve


S219 Pickett Microline 140-ES
Pickett Microline 140-ES - Duplex
Made in USA - Note: All 22 scales Black
Front Scale
LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back - Slider
L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2

Retail Box label


Pickett Microline 140-ES Expanded Log Log Version 2

ISRM 12.06.24.15
Pickett Microline 140-ES Expanded Log Log Version 2
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics.

Front Scale
LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back - Slider
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection..


Pickett Microline 140-ES Expanded Log Log Version 3

ISRM 12.06.24.05
Pickett Microline 140-ES Expanded Log Log Version 3
Made in USA - Note: Inverted and -Log scales Red, new 25 scale arrangement
Front Scale
LL01, K, A [ B, S Cos, ST SecT, T Cot, C ] D, DI, LL1
Back - Slider
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection..


S048 Pickett Microline 140-T
Pickett Microline 140-T - Duplex
Made in USA - 20 scales
Front Scale
LL0, LL00, A [ B, S Cos, ST, T Cot, C ] D, K
Back - Slider
Mic L, LL1, DF [ CF, CIF, CI, C] D, LL3, LL2


Pickett Microline 140-T Expanded Log Log Version 2

ISRM 12.06.24.14
Pickett Microline 140-T Expanded Log Log Version 2
Made in USA - New expanded 25 scale set - All scales Black, Inverse scales italics.
Front Scale
LL01, K, A [ B, S Cos, ST, Sec T, T Cot, C ] D, DI, LL1
Back - Slider
LL2, LL3, DF [ CF, CIF, L, CI, C] D, LL2, LL3
Donated by the Huang Collection..
ISRM 12.03.02.02
Retail Card donated by members of the Oughtred Society


Pickett Microline 160-ES Student
ISRM 11.11.18.04
Pickett Microline 160-ES Student
Made in USA Note CI scale in italics
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank
Original Owner: Laurrie Smith, Period 3 (marked inside sleeve
Gift of the Bill Wehrend Collection, Palo Alto, California
Front Back 1.61MB PDF


Pickett Microline 160-ES Student

ISRM 11.11.18.04
Pickett Microline 160-ES Student
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank



Pickett Microline 160-T Student

ISRM 11.11.18.02
Pickett Microline 160-T Student
Made in Mexico Note CI scale in italics
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank
Note: Italisicized CI scale (compare with US made version below)



Pickett Microline 160-T Student

ISRM 09.10.21.03
Pickett Microline 160-T Student
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank
Donated by Marten C. Jensen. Marty carried this in his pocket while at GE Defense Systems in Syracuse, NY and used along with his Picket 800-T. He graduated from New Mexico State University, with an Electrical Engineering degree in 1958.


Pickett 160C-T Pocket Slide Rule

ISRM 11.11.18.03
Pickett 160C-T Pocket Slide Rule
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back: Blank
Note: On Retail Card. Does not appear to include an instruction sheet


Pickett Model 200 Trig

ISRM 09.01.12.95
Pickett Model 200 Trig
Made in USA National Carbon Co. Promotional Slide Rule
Front Scale (Artwork #38)
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T ] Blank
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig RCA (Metal Cursor bars)

ISRM 09.01.12.96
Pickett Model 200 Trig RCA
Made in USA - RCA Promotional Slide Rule
Front Scale (Artwork #38)
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T ] Blank
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig (Alhambra, Calif)

ISRM 09.01.12.97
Pickett Model 200 Trig
Made in USA - Zach Radio Supply Promotional Slide Rule
Front Scale (Artwork #38)
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T ] Blank
Note: R.C. Pickett, Alhambra, Calif. now added to back artwork(moved from Chicago)
Donated by David Hecht, Alexandria, Virginia


Pickett Model 200 Trig (Shell Chemical logo)
ISRM 14.10.10.01

Pickett Model 200 Trig
Made in USA - Shell Chemical Corp. Promotional Slide Rule
Note: Magnesium with metal cursor blocks, Black triangle logo.
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Shell Logo [ S, ST, T ] Blank
Gift of Bill Wehrend Collection, Palo Alto, California
  Manual 9.06MB PDF


P096 Pickett Model 200 Trig RCA (Plastic Cursor Bars)
Pickett Model 200 RCA Trig
Made in USA - RCA Promotional Slide Rule
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T ] Blank


P225 Pickett N200-T
Pickett N200-T
Made in USA - Note: design change in metal end plates.
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: Blank [ S, ST, T ] Blank
Original owner: Michael P. Taylor, retired Director Dow Chemical. Graduated Univ of Houston, TX. Taught at TAMU and UH. Designed/Built the Houston Dow Center &Dow Chemical plant in Toronto.


P097 Pickett N200-T Trig
Pickett N200-T Trig
Made in USA - Note: added C and D scales on back
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T, C ] D


P076 Pickett N200-ES Trig
Pickett N200-ES Trig
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T, C ] D


Pickett N200-ES Trig (1960-61)

ISRM 14.01.10.21
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates, retaining round black logo.
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T, C ] D
Gift of the Bill Wehrend Collection.


Pickett N200-ES Trig (1964-1975)

ISRM 12.06.24.52
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates. Modern logo.
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T, C ] D
Donated by the Huang Collection..


Pickett N200-ES Trig (1964-1975) Promotional

ISRM 12.06.24.53
Pickett N200-ES Trig
Made in USA - Note: slight design change curved metal end plates with modern logo.
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
Blank [ S, ST, T, C ] D
Sleeve/ Stock Adv: York
Donated by the Huang Collection..


P078 Pickett Model N200-T (1958-1962)
Pickett Model N200-T (Adv)
Made in USA
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
ADV [ S, ST, T, C ] D
BackAdv: Gas Air Conditioning


Pickett N200-T Trig (1964-1975)

ISRM 11.11.11.04
Pickett N200-T Trig
Made in USA - Note: slight design change in metal end plates.
Front Scale
K, A [ B, CI, C ] D, L
Back Scale
ADV [ S, ST, T, C ] D
BackAdv: Sola Basic Industries - Sola Basic Industries was incorporated in Wisconsin on February 17, 1888, as Froedtert Grain & Malting Company. The name was changed to Froedtert Corporation in 1951, to Basic Products Corporation in 1957, and finally in October 1965 to Sola Basic Industries.
Donated by Carlee Heit in memory of her husband, Ray Heit Collection
Raymond Anthony Heit (1957-2003) earned a Civil Engineering degree from the University of Cincinnati, and was a Registered Civil Engineer in Ohio and Texas and a Licensed Surveyor in Ohio. Raymond had a creative and productive career at Factory Mutual, Inc., Union Carbide, Inc, and Kellog-Brown & Root, Inc. He also collected slide rules and slide charts, which now reside in the ISRM archives.


REF Pickett Model 201-S
Economic Purchase Slide Rule, K35
Pickett Model 201-S Economic Purchase Slide Rule, K35
Made in USA - Copyright 1955 O.C. Lang
Front Scale: K, A [ B, CI, C ] D, L
Back Scale: R [ C, S ] Q
Archive - Scan provided by Ronald E. Kuc, Canonsburg, PA


Pickett Model 300 Log

ISRM 09.01.12.6

c1949 stock design
Pickett Model 300 Log Duplex
Made in USA
Front Scale
LL1, A [ B, T cot, S Cos, C ] D, LL2
Back Scale
LL3, DF [ CF, CIF, CI, C ] D, L
Owner Markings on sleeve: R.B. Bevan
Donated by David Hecht, Alexandria, Virginia


P149 Pickett N300-ES Log Log

c1962 stock design
Pickett N300-ES Log Log Duplex
Made in USA
Front Scale
LL1, A [ B, T, S, C ] D, LL2
Back Scale
LL3, DF [ CF, CIF, CI, C ] D, L
Prev Owner: Robert F. Ford Jr.


Pickett Model No.400 Business Rule (1947)
ISRM 13.12.03.04
Pickett Model No. 400 Business Rule (1st design)
Made in USA by Pickett - Triangle Pickett logo
Note: Magnesium stock, Steel cursor blocks, stator grooved on all edges
Note: Special C% and R% scales for Cost and Retail mark up. DF & D scale labeled as RF & R.
Front Scale (artwork: 43): K, A [ B, CI, C ] D, L
Back Scale: R%, RF [ CF, Unit, Doz(C%), Gross, C ] R, C%, Gross, Doz(R%), Unit



Pickett Model 400-T Business Rule (1958-1961)
ISRM 14.01.03.05
Pickett Model 400-T Business Rule
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, Curved Braces
Front Scale (artwork: 43)
K, A [ B, CI, C ] D, L
Back Scale
R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Gift Of Phillip Rodley New Zealand


Pickett Model 400-ES Business Rule (1958-1961)
REF
Pickett Model 400-ES Business Rule
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, Curved Braces
Front Scale (artwork: 43)
K, A [ B, CI, C ] D, L
Back Scale
R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Archive - Scans of Slide Rule and Manual Courtesy of Gregg Scott Collection


Pickett Model N400-T Business Rule (c1962)
REF
Pickett Model N400-T Business Rule
Made in USA by Pickett - Round Black Pickett logo
Note: Aluminum stock, Nylon cursor blocks, Curved Braces
Front Scale (artwork: 43)
K, A [ B, CI, C ] D, L
Back Scale
R%, DF [ CF, Unit, Doz(C%), Gross, C ] D, Gross, Doz(R%), Unit
Archive - Scans of Slide Rule and Manual Courtesy of Gregg Scott Collection


S377 Pickett 500 Ortho Phase Log Log
Pickett 500 Ortho Phase Log Log
Made in USA - ©1948 - Note: P&E Logo with "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI scale
Front Scale (artwork: G10)
LL0, LL00, A [ B, T Cos, ST, S Cos ] D, K
Back Scale (artwork: H10)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2


Pickett 500 Ortho Phase Log Log

ISRM 12.06.28.01
Pickett 500 Ortho Phase Log Log
Made in USA - ©1948 - Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI scale
Front Scale (artwork: G10)
LL0, LL00, A [ B, T Cos, ST, S Cos ] D, K
Back Scale (artwork: H10)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Donated by Peter Chmielowiec, Louisville, Colorado


Peter used this slide rule while attending the University of Chicago Laboratory High School c1963-1967. He enlisted in the U.S. Army, served in Vietnam from 1968-1969, and spent 20 years in the service of his country. He is an active bicycle rider in the Boulder, Colorado area.


Pickett 500 Ortho Phase Log Log

ISRM 13.07.25.02

Phillip C. Murray (1920-2008)
Pickett 500 Ortho Phase Log Log - sn09C3296
Made in USA - ©1948 Note: No "Trademark" next to logo
Note: Magnesium construction with silkscreened scales. Metal Cursor blocks.
Note: Black dot labels on CI scale
Front Scale (no artwork code)
LL0, LL00, A [ B, T, ST, S ] D, K
Back Scale (no artwork code)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Gifted by Maureen White of Minneapolis, Minnissota, neice of Phillip Murray
This slide rule, was owned and used by Phillip C. Murray (1920-2008) in his career. Phil attended Culver Military Academy in Indiana then received his degree in engineering from Purdue University, class of 1942 (Phi Delta Theta). He served in the U.S. Army from 1942-1946 and later employed by Pillsbury as a mechanical engineer. He traveled around the world helping to set up operational facitlies for the company. Phil was a lifelong member of Purdue's Phi Delt and was a significant donor and loyal supporter of their annual fund and educational foundation for many years. Phil was a gifted storyteller, avid bowler and spent his later years volunteering for Habitat for Humanity.


Pickett N500-ES Log Log

ISRM 13.07.03.17
Pickett N500-ES Log Log Duplex - c1958
Made in USA - square braces, extended nylon cursor bars, round black logo
Front Scale (Artwork #54)
LL0, LL00, A [ B, ST, T, S, C ] D, K
Back Scale (Artwork #55)
L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Original owner: (Name marked on sleeve flap) Denny Yeates
Donated by Daniel Swerdlow, Bethesda, Maryland
Daniel Swerdlow is a second-generation engineer from New York City and has degrees in electrical engineering from New York University and Michigan State University. He has done telecommunications engineering for major corporations and currently lives in the Washington, DC area and works at the United States Patent and Trademark Office. Dan has gifted most of his collection to ISRM to support the museum. Many specimens may be found in the various ISRM galleries.


Pickett N-500-ES HI-Log Log

ISRM 09.01.12.63
Pickett N-500-ES - Hi-Log Log Duplex - c1962
Made in USA - radius braces, round black logo
Front Scale (Artwork #83)
+LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale (Artwork #84)
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Note: Grey sleeve with belt ring
Donated by David Hecht of Alexandria, Virginia
David is a Collector and Member of the Oughtred Society who has Donated many slide rules to ISRM and its SR Loaner Program. David's first SR was a circular Pickett 101-C, which he acquired in high school. His interest led his parents to give him a K&E 68-1210 as a graduation gift. After college, David worked fifteen years for the U.S. Navy as a contracting officer and is now retired from Civil Service. His slide rule collection specializes in Picketts and he enjoys traveling to board game conventions.


Pickett N-500-ES HI-Log Log (round yellow logo)

ISRM 10.03.01.03

Robert C. Eaton
Pickett N-500-ES - HI-Log Log Duplex - c1962
Made in USA - radius braces, round yellow logo
Front Scale
+LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Donated by Prof. Robert C. Eaton, PhD., Boulder, Colorado
Robert C. Eaton (1946 - present) used this slide rule starting in his student years in 1963, and throughout his career as a scientist in biophysics. Trained at several different universities in the US & Europe. Worked as research scientist at Scripps Institution of Oceanography, and later became a Professor and Department Chair at the Univ. of Colorado at Boulder. Professor Eaton studied the neural control of movement using high-speed film & digital cameras, electrical recordings from brain cells, and computer models of neural network processes. After computers became commonplace, he often surprised students and associates by pulling out this slide rule to do a quick analogue calculation. Robert retired in 2003 and lives in Boulder, Colorado with his wife Katie.


ISRM Pickett N500-ES HI-Log Log (Modern Logo)
Pickett N500-ES - Hi-Log Log Duplex - 1964
Made in USA - radius braces, Modern logo
Front Scale
+LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3


Pickett N-500-T HI-Log Log

ISRM 14.07.02.69
Pickett N-500-T - HI-Log Log Duplex - 1964
Made in USA in Chicago, Illinois.
Front Scale
+LL1, -LL1, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale
+LL2, -LL2, DF [ CF, CIF, L, CI, C ] D, +LL3, -LL3
Original owner: ScottHartley (written on flap of black leather sleeve).
Gift of Ed Millis collection, Dallas, Texas.


REF Pickett 510-T Business & Financial Rule
Pickett 510-T Business & Financial Rule
Made in USA
Front Scale
S1, S2 [ C2, L, 1/C, C ] D, S3
Back Scale
RF [ CF, C%(R%), C ] R, C%
Archive - Phil Benchoff collection


S184 Pickett N-515-T Electronic
Pickett_N-515-T_Electronic
Made in USA - For Cleveland Institute of Electronics
Front Scale
(LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side
Reactance formula, Ohm's law, etc

Popular Science News Release (1965)


Pickett N-515-T Electronic CIE Logo

ISRM 10.12.12.03
Pickett N-515-T Electronic CIE Logo - 1969
Made in USA - For Cleveland Institute of Electronics
Front Scale
(LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side
Reactance formula, Ohm's law, etc
Donated by Andrew David (Andy) Keller, Longmont, Colorado

Promotional Pamphlet (2.34 MB PDF)


S281 Pickett N-515-T Electronic CIE New Logo
Pickett N-515-T Electronic CIE Logo
Made in USA - For Cleveland Institute of Electronics
Front Scale
(LG), (fx)2p, A [(Cr)B, S, T, (Lxor Cx)CI, Xlor Fr-C] D(XL), L, Ln
Back Side
Reactance formula, Ohm's law, etc


REF Pickett 520 - MIL-C-4318-B Type A-1
Pickett 520 - MIL-C-4318-B Type A-1
Made in USA by Pickett. Magnesium stock.
Front Scale
L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back scale
Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude
Archive - Dutch KRING
USAF Manual 8.69Mb


Pickett 520 - MIL-C-4318-B Type A-1 - Aluminum Stock
Got a scan or one to donate?



Pickett Model 560 US Navy Photographic Interpretation Slide Rule
Got a scan or one to donate?



Pickett N-525-ES Stat Rule

ISRM 13.07.03.16
Pickett N-525-ES Stat Rule
Made in USA by Pickett for Human Factors Institute
Front Scale
sp, p [ q, z, pL, y, N ] d, X2, Sig. Level
Back Scale
(p + q)n, X2df , A [ B, BI, L, CI, C ] D, ODD√, EVEN√ 
Note: Black leather sleeve with triangle logo
Gift of Daniel Swerdlow, Bethesda, Maryland


Pickett N-525-T Stat Rule

ISRM 14.10.09.06

Pickett N-525-T Stat Rule
Made in USA by Pickett for Human Factors Institute
Front Scale
sp, p [ q, z, pL, y, N ] d, X2, Sig. Level
Back Scale
(p + q)n, X2df , A [ B, BI, L, CI, C ] D, ODD√, EVEN√ 
Note: Black leather sleeve with triangle logo
Gift of Edward T. Wright, Odenton, Maryland



Pickett N-531-ES Capitol Radio Engineering Institute

ISRM 12.06.24.50
Pickett N-531-ES Capitol Radio Engineering Institute - 1960
Made in USA by Pickett for CREI
Front Scale
L, Ln, A [ B, CI, C ] D, 2π, K
Back Scale
LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Donated by the Huang Collection..

Pickett N-531-ES Capitol Radio Engineering Institute
ISRM 14.07.03.65
Pickett N-531-ES Capitol Radio Engineering Institute - 1964-75
Note: Modern Logo
Made in MEXICO by Pickett for CREI
Front Scale
L, Ln, A [ B, CI, C ] D, 2π, K
Back Scale
LL2, LL1 [ S Cos, ST, T Cot, C ] D, LL3
Gift of the Ed Millis Collection, Dallas, Texas.


Pickett PEC-531 General Cable
Cable Pressurization Computer

ISRM 2006.12.30.01 (REF)
Pickett PEC-531 General Cable - Cable Pressurization Computer
Made in USA by Pickett for General Cable, c1970
Front Scale
Air Flow(F) [ Pnumatic Resistance(RI), Paper Pulp(18,20,22,24,28 Gauge), Distance(D) ] Pressure Droip(P), Pnuematic Resistance(RT)
Back Scale
[ Pnumatic Resistance(RI), P.I.C.(18,22,24,28 Gauge), Distance(D) ]
Donated by Bram Wouters
Sleeve:Instructions


REF Pickett N-535-T Electronic Technician
Pickett_N-535-T_Electronic Technician
Made in USA - Designed by Chan Street - 1970
Front Scale
L, Ln, AI(Cr), Lr [ B(Lr), ST, T Cot, S Cos, C ] D(F,XL,E,R,W), DI(Xc), K
Back Scale
Cr [ Lr, (C,L or I) ] (F,XL,E, R,W) Back Side: Formulas, Ohm's law, Equivalents, etc.
Archive - Jerry McKenna Collection


REF Pickett N-535-ES Electronic Technician
Pickett N-535-ES Electronic Technician
Made in USA - Designed by Chan Street - 1970 Eastfield Digital Electronics
Front Scale
L, Ln, AI(Cr), Lr [ B(Lr), ST, T Cot, S Cos, C ] D(F,XL,E,R,W), DI(Xc), K
Back Scale
Cr [ Lr, (C,L or I) ] (F,XL,E, R,W) Back Side: Formulas, Ohm's law, Equivalents, etc.
Archive - Scan provided by Frank Robertson
Note: Eastfield Digital Electronics is a Dallas County Community College located in Mesquite, Texas.


Pickett 540-T Jet Thrust

ISRM 11.12.16.02
Pickett 540-T Jet Thrust
Made in USA - for Pratt & Whitney Aircraft - c1959
Artwork: Front Scale (Artwork #64)
Inlet Air Temperature [ PT (Inlet Air Pressure), C (Indicated) ] D (Corrected)
Back Scale (Artwork #63)
STD., Exhaust Temperature [ Inlet Air Temperature, Indicated deg C, Indicated deg F ] Corrected deg C, Corrected deg F ]
Original Owner (Marked on Sleeve): Lambert; Gold stamped on flap: SERVICE SCHOOL


REF Pickett N540-T CS126 Jet Thrust
Pickett N540-T CS126 Jet Thrust
Made in USA - for Pratt & Whitney Aircraft - c1963
Front Scale
Inlet Air Temperature [ Inlet Air Pressure, Indicated ] Corrected
Back Scale
Exhaust Temperature [ Inlet Air Temperature, Indicated deg C, Indicated deg F ] Corrected deg C, Corrected deg F ]
Archive - Scan provided by Olivier Cassou, France


REF Pickett N550-T Warren-Knight Weight rule No 1373-ET
Pickett N550-T Warren-Knight Weight rule No 1373-ET
Made in USA - for Warren-Knight Co. Philadephia, PA - 1962
Front Scale
L, A, DF [ CF, CIF, T, S, C ] D, DI, K
Back Scale
Thickness (A) [ Width (B), Length (C), Material (D), Shape (E) ] Weight (F)
Archive - Scan provided by Olivier Cassou, France


Pickett Model 596 Range Error slide rule
Got a scan or one to donate?



REF Pickett Model 598 "R" Parameter Slide Rule
Pickett Model 598 "R" Parameter Slide Rule
Made in USA -
Front Scale (Artwork 325)
Pulse 5 - Range Rate (Volts) [ Pulse 3 True Air Speed (Volts), Index ] B
Back Scale (Artwork 328)
B [ Pulse 7 paT (Volts), G ] R Number
Archive - Scan provided by Richard Davis, Las Vegas, Nevada
Note: It is beleived by the curator of ISRM that this slide rule is an aid in determining the sonic airborne thermometer-anemometer to determine electronically derived true air speed of air craft. It uses the differences of timed pulses to determine the true air speed and accounts for atmospheric pressure (pa). If anyone has any additional info on this please let me know.


P093 Pickett Model 600 Log Log
Pickett Model 600 Log Log Duplex
Made in USA - note construction, scales to the N600
Front Scale
LL1+, LL1-, A [ B, T Cot, ST, S Cos, C ] D, DI, K
Back Scale
LL2+, LL2-, DF [ CF, CIF, CI, L, C ] D, LL3+, LL3-


Pickett N600-ES Log Log ((1962-1964)

ISRM 11.04.09.01
Pickett N600-ES Log Log Duplex
Made in USA by Pickett - circa 1962
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Andrew (Andy) David Keller (1942-2010) had a long career as an ergonomist, industrial psychologist and human factors engineer, working 17 years for IBM. He served in the US Army 1966-1968 and made design and safety improvements for a personnel carrier which were adopted by the Army. Andy earned his undergraduate degree from Mankato State University and his Masters degree from the University of South Dakota. A strong community citizen, Andy served in his church and was an active leader of the local chapter of the Society of Manufacturing Engineers. Andy was a contributor of numerous slide rules to the International Slide Rule Museum which can be found in the Pickett and Post galleries. He died in 2010 and was survived by his wife Anne in Longmont, Colorado. who donated this slide rule to ISRM in 2011. The slide rule may be seen in his pocket as he presents earlier gifts to Mike Konshak, Curator of ISRM

REF Pickett N600-ES Log Log - Buzz Aldrin Apollo 11
Pickett N600-ES Log Log Duplex - Buzz Aldrin Apollo 11
Made in USA - Flown to to the moon July 20, 1969
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
This is a scan of the actual slide rule that was taken to the moon by astronaut Buzz Aldrin on July 20, 1969. It was sold at a Heritage Auction Galleries on September 21, 2007 and brought $77,675.00 from a serious collecter. His letter of authentication is shown.


Pickett N600-ES Log Log (1964-1975)

ISRM 12.06.24.12
Pickett N600-ES Log Log Duplex
Made in USA - Modern Pickett Logo, NOS in Retail box with manual. Hooked braces
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Made possible by Donations from the Huang Collection.


Pickett N600-T Log Log (NOS)

ISRM 13.02.20.04B
Pickett N600-T Log Log Duplex (NOS)
Made in USA - Modern Logo, Red Inverse Scales
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Note: This is a 'Twin Pack' set with a 10" and 6" Dual Base LogLog Slide Rules, which included an N4-T, shown below.


P094 Pickett N600-T Log Log
Pickett N600-T Log Log Duplex
Made in USA - Modern Logo, Red Inverse Scales
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
This model slide rule was always in the shirt pocket of Dr. Jerry Sweet, Professor Emeritus of mechanical engineering technology at Colorado State University - Pueblo, CO (and a mentor to the curator of ISRM, who is an alumnus of CSU-Pueblo). He is retired. Jerry taught courses in drafting, computer-aided design (CAD) and manufacturing. He was coordinator of the coop and internship program for all engineering technology students. "Doc Sweet" is still very active in outreach activities with local school districts.


Pickett N600-T Log Log (all black scales)

ISRM 12.06.24.13
Pickett N600-T Log Log (all black scales)
Made in USA - Black Round Logo, stamped square braces
Front Scale (artwork #81)
LL1+ , LL1-, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Donated by the Huang Collection.
Mr Huang, who prefers to remain anonymous, obtained a B.S. degree in Physics from Taiwan's National Tsing Hua University in 1971. His love for computation has encouraged him to build a collection of slide rules, HP and TI calculators, as well as abaci, many displayed at ISRM.


Pickett N600-T Log Log (Red inverse scales)

ISRM 13.02.20.13
Pickett N600-T Log Log (Red inverse scales)
Made in USA - Black Round Logo, stamped curved braces
Front Scale
LL1+, LL1-, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-


REF Pickett N600-T Log Log w/ Magnifier
Pickett N600-T Log Log w/ Magnifier
Made in USA
Front Scale
LL1+.01/-.01, A [ B, ST, T T, S Cos, C ] D, DI, K
Back Scale
LL2+.1/-.1, DF [ CF, Ln, L, CI, C ] D, LL3+1/-1
Archive - Herman's SR Catalogue SRC33141


REF Pickett N606-ES Metric Converter
Pickett N606-ES Metric Converter
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
English Measure to Metric Measure
LL2+/-, DF [ CF, Ln, L, CI, C ] D, LL3+/-
Archive - Not in collection


REF Pickett N700-T USAF Aerial Photo Type A-2
Pickett N700-T USAF Aerial Photo Type A-2
Made in USA for the USAF
Front Scale
L, A DF [ CF, CI, T, S, C ] D, DI, K
Back Scale
Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length] Altitude
Archive - Not in collection
USAF Manual 8.69Mb


S220 Pickett 800
Log Log
Pickett 800 - Log Log Duplex - 1945-1950
Made in USA - Magnesium stock.
Front Scale
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0


Pickett 800-ES Log Log Synchro-Scale

ISRM 09.01.12.94
Pickett 800-ES - Log Log Synchro-Scale - 1954
Made in USA - Flat stock braces, metal bars and flat cursor lens. slotted slide.
Front Scale
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


REF Pickett N800-ES Log Log

ISRM 08.11.20.02

Pickett N800-ES - Log Log 1959
Made in USA
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Contributed by Shell Thuet in 2007 (See Webpage). Professional Motorcycle race tuner. Shell Thuet was inducted in the American Motorcycle Hall of Fame in 2001. The Nomination Letter written by Mike Konshak, one of his past racers, who is also the curator of the Slide Rule Museum and also the author of Shell Thuet's Biography. Shell built and tuned winning Indian Scouts, Enfield's and Yamahas. See also his motorcycle grease laden Aristo 0970
The following pictures (left to right) are from 1946, 1953, 1963 and 1975. Shell Thuet passed away in Victorville July 8, 2011 at age 98.

Pickett N800-ES Log Log Speed Rule
ISRM 14.07.03.70

Pickett N800-ES Log Log Speed Rule 1964
Made in USA, Modern logo, Curved braces, convex lens.
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift of Ed Millis Collection, Dallas, Texas..


S566 Pickett 800-T Log Log Synchro-Scale
Pickett 800-T - Log Log Synchro-Scale - 1958
Made in USA - Aluminum stock, Die cast braces and cursor.
Front Scale
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0


ISRM Pickett 800-T Log Log Synchro-Scale
Pickett 800-T - Log Log Synchro-Scale - 1958
Made in USA - Aluminum stock, Die cast braces and cursor.
Front Scale
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


ISRM Pickett 800-T Log Log Synchro-Scale
Pickett 800-T - Log Log Synchro-Scale - 1957
Made in USA - Stamped Stator braces, metal bars and flat cursor lens.
Front Scale
LL1+0.01/-0.01, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA


S066 Pickett N800-T
Log Log
Pickett N800-T - Log Log Duplex - 1959
Made in USA - Nylon Cursor, Stamped Aluminum braces
Front Scale
LL1+0.01/-0.01, A [ B, ST, T 0., Cot <10.0, S, Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0


ISRM Pickett N800-T Log Log Speed Rule

ISRM 09.10.21.04
Pickett N800-T - Log Log Duplex - 1962
Made in USA - Nylon Cursor, Contoured Aluminum braces
Front Scale
LL1+0.01/-0.01, A [ B, ST, T 0., Cot <10.0, S, Cos, C ] D, DI, K
Back Scale
LL2+0.1/-0.1, DF [ CF, CIF, L, CI, C ] D, LL3+1.0/-1.0
Donated by Marten C. Jensen. Marty used while at GE Defense Systems in Syracuse, NY and used along with his Picket 160-T pocket rule. It replaced his older Pickett N4-T that he used at New Mexico State University. He graduated with an Electrical Engineering degree in 1958. Note his initials stamped in the richt brace.


Pickett N803-ES Log Log Speed Rule Dual Base

ISRM 14.07.02.68
Pickett N803-ES - Log Log Speed Rule Dual Base 1959
Made in USA. Round Triangle logo, Square braces, grooved flat lens.
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Gift Of Ed Millis, Dallas, Texas
803 How To Use Log Log Slide Rules N800, N803, N300, N600, N4 - 6.53Mb


Pickett N803-ES Log Log Speed Rule Dual Base

ISRM 09.01.12.116
Pickett N803-ES - Log Log Speed Rule Dual Base 1960-75
Made in USA. Modern logo, curved braces, grooved convex lens.
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA
803 Supplement to Log Log Manual - 1.48Mb


REF Pickett N803-T Log Log Speed Rule Dual Base (1960)
Pickett N803-T - Log Log Speed Rule Dual Base 1960
Made in USA. Triangle logo, curved braces, grooved flat lens.
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Archive - Contributed by Roger Miller, Castle Rock, CO., VP and Energy Engineer

Original 803 (also 800, 600, 300, N3) Log Log Manual (with 803 Supplement) - 20.2Mb


ISRM Pickett N803-T Log Log Speed Rule Dual Base
Pickett N803-T - Log Log Speed Rule Dual Base 1960-75
Made in USA
Front Scale
#1,   #2, K, A [ B, S Cos, ST, T Cot, CI, C ] D, DI, DFM
Back Scale
LL0+0.001/-0.001, LL1+0.01/-0.01, DF [ CF, CIF, L, CI, C ] D, LL2+0.1/-0.1, LL3+1.0/-1.0
Donated by David Hecht, Alexandria, VA
803 Supplement to Log Log Manual - 1.48Mb


REF Pickett N808-T Marine Fuels
Pickett N808-T Marine Fuels c1959
Made in USA by Pickett for Standard Oil
Front Scale
API Gravity, Specific Gravity, Barrels per Long Ton [ CI, C ] D, K, L
Back Scale
Engler, SSU, SSF, [ Intermediate Bunker Fuel] Fuel Temperature F°, C°
Archive - Duncan MacKeller Collection
Note: This is the only 8 inch slide rule that Pickett ever made


ISRM Pickett N901-T Simplex
Pickett N901-T Simplex
Made in USA - Early Narrow plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65)
K, A [ B, CI, C ] D, L
Instructions [ Equivalents ] Instructions
Original Owner Dickie Lee, marked on black sewed naugahyde sleeve.
Note: Missing stator screw and cursur tension spring.


ISRM Pickett N901-ES Simplex
Pickett N901-ES Simplex\
Made in USA - Early Narrow plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65)
K, A [ B, CI, C ] D, L
Back Scale
Instructions [ Equivalents ] Instructions
Note: black sewed naugahyde sleeve.


ISRM Pickett N901-ES Simplex
Pickett N901-ES Simplex\
Made in USA - Wide plastic cursor, Square Braces Black Round Logo
Front Scale (Artwork #65)
K, A [ B, CI, C ] D, L
Back Scale
Instructions [ Equivalents ] Instructions
Note: black sewed naugahyde sleeve.


S175 Pickett 902 Simplex Trig
Pickett 902 Simplex Trig
Made in USA - Note early scale set, no CI scale, triangle logo
Front Scale
K, A [ B, S Cos, T Cot,  C ] D, L
Back Scale
Instructions [ Instructions ] Equivalents


S174 Pickett N902-ES Simplex Trig (version 2 scales)
Pickett N902-ES Simplex Trig
Made in USA - Note: No CI scale, Square Braces, Extended cursor blocks, Round Black Logo

Front Scale
K, A [ B, T Cot, S Cos, C ] D, L
Back Scale
Equivalents and instructions


Pickett N902-ES Simplex Trig

ISRM 14.09.17.02

Pickett N902-ES Simplex Trig
Made in USA - CI scale added, Radius Braces, Black Round Logo
Front Scale (Artwork #38)
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale (Artwork #41)
Instructions [ Instructions ] Equivalents
Note: Brown sewed Naugahyde sleeve
Gift of Jeannette B. Lyon, Myrtle Beach, Florida
Jeanette Lyon bought this slide rule while in high school from 1961-1963. She received her Bachelor of Science (Biology) in 1968 from Towson State College, Baltimore, MD, and her Master of Health Science in 1973 from Johns Hopkins University School of Hygiene and Public Health in Baltimore, MD. As a profesional Sanitarian, she has worked for the Anne Arundel County Department of Health, Division of Environmental Health, Annapolis, MD; the Maryland Department of Health and Mental Hygiene, Office of Food Protection and Consumer Health Services, Baltimore, MD; and currently, since 1996, the U. S. Food and Drug Administration at the Center for Food Safety and Applied Nutrition in Washington, DC and College Park, MD. Her late husband, Jesse (Bud) Lyon's slide rule is in the K&E Standard gallery.


Pickett N902-ES Simplex Trig

ISRM 09.10.23.01
Pickett N902-ES Simplex Trig
Made in USA - With CI scale, Radius Braces, Modern Logo
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Gift of R. Rosty, Saddlebrook, New Jersy


Pickett 902-T Simplex Trig (1957)

ISRM 12.12.03.49
Pickett 902-T Simplex Trig - 1957
Made in USA by Pickett
Note: Diecast end braces and cursor bars. This was a short lived design.
Front Scale (artwork: #39)
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back (artwork: #41)
Instructions on how to use and read slide rule.


Pickett N902-T Simplex Trig (1959)

ISRM 10.12.12.05

     
Related Ephemera enclosed in retail box
Pickett N902-T Simplex Trig - 1959
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Original Owner: Herb Stark
Donated by Andrew Keller, Longmont, Colorado


Pickett N902-T Simplex Trig

ISRM 12.06.24.49
Pickett N902-T Simplex Trig - 1960
Made in USA
Note Flat lens, Extended cursor blocks, Curved braces, Round Black Logo.
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Donated by the Huang Collection.


Pickett N902-T Simplex Trig - c1962

ISRM 14.01.10.49
Pickett N902-T Simplex Trig - 1962
Made in USA
Note Convex lens, Nylon cursor blocks, Curved braces, Round Black Logo
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Gift of the Bill Wehrend Collection.


ISRM Pickett N902-T Simplex Trig
Pickett N902-T Simplex Trig - 1964 to 1975
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions


S218 Pickett 903
Pickett 903
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Original Owner: Ron Clifton, used this at the Colorado school of Mines in Golden, CO.


Pickett N903-ES Trig and Conversion c1959-1960

ISRM 14.01.10.47
Pickett N903-ES Trig and Conversion
Made in USA
Note: Curved braces, Round Black Logo, Grooved flat lens, Extended nylon cursor blocks.
Front Scale
K, A, DF [ CF, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions
Gift of the Bill Wehrend Collection.


S223 Pickett N903-ES Trig and Conversion
Pickett N903-ES Trig and Conversion
Made in USA
Front Scale
K, A, DF [ CF, T Cot, S Cos, CI, C ] D, L
Back Scale
Equivalents and instructions


Pickett N904-ES Trig and Decimal Keeper Speed Rule

ISRM 13.02.20.03
Pickett N904-ES Trig and Decimal Keeper Speed Rule - 1960-62
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
K*, A* [ B*, T*, S*, CI*, C* ] D*, L*


Pickett N904-T Trig and Decimal Keeper Speed Rule

ISRM 14.09.08.01
Pickett N904-T Trig and Decimal Keeper Speed Rule - 1960-62
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
K*, A* [ B*, T*, S*, CI*, C* ] D*, L*
Gift Of Edward T. Wright, Odenton, Maryland.


S567 Pickett 905-ES "A" Texas Speed Rule
Pickett 905-ES "A" Texas Speed Rule 1959
Made in USA
Front Scale (Note: Two K scales)
K, A [ B, K, CI, C ] D, L
Back Scale
[ T Cot, ST, S Cos, C ] D
Original owner: Joe Caballero Gomez, , WWII veteran, Architectural Drafter, trained on the GI Bill, passed this slide rule on to his nephew Rey Moreno in Plano, TX who established www.moredrafting.com
Note: Every year until about 1980 a slide rule competition was held in the State of Texas (US). The contestants had to complete a series of calculations in 30 minutes. As the competition was timed there was a premium on speed but the marking system also required high accuracy. If the answer was accurate to three place of decimals, three points were awarded but if the answer was off by more than 2 places in the third significant figure no marks were awarded. Whilst other rules were allowed, and were used, the Pickett "Texas speed rule" was most popular. Ref: Ron Manley


S474 Pickett N909-ES Metric Conversion Simplex Trig
Pickett N909-ES Metric Conversion Simplex Trig
Made in USA
Front Scale
K, A [ B, T Cot, S Cos, CI, C ] D, L
Back Scale
Fahrenheit, A [ Univ Conversion Scales ] B, Celsius, Decimals


Pickett 931-ES Capitol Radio Engineering Institute

ISRM 11.12.23.01
Pickett 931-ES Capitol Radio Engineering Institute - 1959
Made in USA by Pickett for CREI. Square Braces.
Front Scale (artwork #119)
K, A [B, CI, C] D, L, Ln
Back Scale (artwork #120)
LL2, LL1 [ S Cos, ST, T Cot, C] D, LL3
Sleeve: Brown sewn nuagahyde
Donated by Dan Marcotte, Rye, New Hampshire
Dan used this slide rule while being a part of the Capitol Radio Engineering Institute Nucleur Engineering program. His career started in R&D at EG&G, a prime contractor in conducting and recording nucleur explosions. He later became active in real estate, followed by a stint as an industrial sales representitive for a farm and industrial wholesaler covering the U.S. northeast. Dan is now retired with his wife of 51 years.


S434 Pickett 931-ES Capitol Radio Engineering Institute
Pickett 931-ES Capitol Radio Engineering Institute - 1960-62
Made in USA by Pickett for CREI. Radiused Braces.
Front Scale
L, Ln, A [B, CI, C] D, 2π, K
Back Scale
LL2, LL1 [ S Cos, ST, T Cot, C] D, LL3
Note: change in scale layout on front scale from the earlier 1959 model


Pickett 1000 Ortho-Phase Duplex

ISRM 12.06.18.05
Pickett 1000 Ortho-Phase Duplex snA048532
Made in USA by Pickett & Eckel - Magnesium Stock, 1948 Triangle Logo with Trademark, Black dot CI scale
Front Scale (artwork #J-10)
A [ B, T Cot, ST, S Cos] D, K
Back Scale (artwork #K-10)
DF [ CF, CIF, CI, C ] D, L
Note: felt sleeve. In retail box.
Donated by Daniel Swerdlow, Bethesda, Maryland
Copyright 1948 Manual 8.87Mb


S176 Pickett 1000 Ortho-Phase Duplex
Pickett 1000 Ortho-Phase Duplex
Made in USA - Note the CI scale with the numbers circled
Front Scale
A [ B, T Cot , ST, S Cos] D, K
Back Scale
DF [ CF, CIF, CI, C ] D, L


Pickett 1000 Ortho-Phase Duplex

ISRM 12.06.18.05
Pickett 1000 Ortho-Phase Duplex
Made in USA - Note the modern CI scale
Front Scale (artwork #26)
A [ B, T Cot , ST, S Cos] D, K
Back Scale (artwork #271)
DF [ CF, CIF, CI, C ] D, L


S179 Pickett 1000 Ortho Phase
Pickett 1000 Ortho Phase
Made in USA
Front Scale
A [ B, S Cos, ST, T Cot ] D, K
Back Scale
DF [ CF, CIF, CI, C ] D, L


Pickett Model 1006 Trig (c1949)

ISRM 09.01.12.65
Pickett Model 1006 Duplex Trig
Made in USA
Front Scale (Artwork code 80)
K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale
DF [ CF, CIF, CI, C ] D, L
Donated by David Hecht, Alexandria, Virginia


Pickett Model 1006 Trig

ISRM 11.10.25.02
Pickett Model 1006 Duplex Trig c1950
Made in USA
Front Scale
K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale
DF [ CF, CIF, CI, C ] D, L
Donated by Russell Anthony, Lafayette, Colorado.
This slide rule was used by his father, Ward Anthony, who was an aerospace engineer at Martin Marietta in Littleton, Colorado.


P091 Pickett Model N1006-T Trig
Pickett Model N1006-T Duplex Trig
Made in USA
Front Scale
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (added Ln)
Ln, DF [ CF, CIF, CI, C ] D, L


Pickett & Eckel 1010 Duplex c1948

ISRM 14.01.10.42


Box with Dieterich-Post Co. distributor label.
Pickett 1010 Duplex sn2C40913
Serial Number 2C40913 stamped on cursor block.
Made in USA by Pickett & A.F. Eckel, Inc. for Dieterich-Post Co. (no rebranding)
Front Scale (Artwork #74)
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271)
DF [ CF, CIF, CI, C ] D, L
Note features: Metal Bar Cursor, Rounded Braces, Triangle Logo
Gift of Bill Wehrend collection, Palo Alto, California.

Model 1000 Slide Rule Manual with CI and DI scale supplement. (5.80MB PDF)


Pickett 1010 Duplex c1948

ISRM 12.11.22.03
Pickett 1010 Duplex
Made in USA. Serial Number 3004548 (on cursor block)
Front Scale (Artwork #74)
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271)
DF [ CF, CIF, CI, C ] D, L
Note features: Metal Bar Cursor, Rounded Braces, Triangle Logo
Donated from the collection of Robert L. Allison of Ballard, Washington.


Pickett 1010 Duplex c1948

ISRM 12.11.22.03
Pickett 1010 Duplex
Made in USA by Pickett and Eckel. Serial Number 3004548 (on cursor block)
Note features: Magnesium stock, grooved on top and bottom. Metal Bar Cursor, Rounded Braces, Triangle Logo
Front Scale (Artwork #74)
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271)
DF [ CF, CIF, CI, C ] D, L
Donated from the collection of Robert L. Allison of Ballard, Washington.


Pickett 1010-ES Duplex - Transitional Model c1953

ISRM 14.01.10.48

Pickett 1010-ES Duplex - Transitional Model
Made in USA by Pickett and Eckel in Alhambra by Cal-Pan Co. using Pickette artwork. This is an aluminum stock transitional model which coincides with design changes to the slide rules, as well as the leather sleeve, with the move from Chicago, Illinois to Alhambra, California. It is the first time the -ES or -T appears as part of the model number artwork.
Note:Round black logo. First appearance of Aluminum stock with tension spring on upper stock (to keep slide falling out). Rounded braces as was used with magnesium stocks, extended nylon cursor bars, grooved flat lens. All part of a cost reduction. The radii on the upper and lower stock corners were soon discontinued in favor of square corners, another cost reduction in machining time.
Front Scale (Artwork #74): K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271): DF [ CF, CIF, CI, C ] D, L
Note: The sleeve shown is a very rare transitional design, and is the first attempt at Pickett making leather sleeves, after the tacky rubber type which was introduced with other magnesium models in 1948. The rubber model retained moisture and added to the corrosion of the magnesium stocks. Notice the 'D' ring used for leather belt loops, to compete with K&E and Post sleeves. In 1953-54 John Pickett formed Pacific Leather Works to make slide rule cases which had plastic inner liners.
Gift of the Bill Wehrend Collection, Palo Alto, California.


Pickett 1010-ES Trig Duplex

ISRM 11.11.21.02
Pickett 1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, All black Text
Front Scale (Artwork #74)
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #271)
DF [ CF, CIF, CI, C ] D, L
Note: Black sewed naugahyde sleeve
Original owner: Authur Bowen, Marked on sleeve


Pickett N1010-ES Trig Duplex

ISRM 11.11.21.07
Pickett N1010-ES Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Black Round Logo, All black Text
Front Scale (Artwork #74)
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale (Artwork #272)
DF [ CF, CIF, CI, C ] D, DI, L
Note: Added DI scale to back. Black sewed naugahyde sleeve


Pickett N1010-ES Trig Duplex

ISRM 10.05.10.01
Pickett N1010-ES Trig Duplex
Made in USA - Wide Plastic Cursor, Curved Braces, Round Black Logo, Red and Black Text
Front Scale
K, A [ B, ST, T Cot, S Cos, S, C ] D, DI
Back Scale
L, DF [ CF, CIF, CI, C ] D, DI
Donated by Al White, Colorado
Al used this while working at Bendix Corp in Teterboro, New Jersey in their drafting department. 1964-1972. It still has the original retail box with manual and warranty.


Pickett N1010-ES PowerTrig with Retail Box

ISRM 12.06.24.18
Pickett N1010-ES PowerTrig with Retail Box and Gaurentee.
Made in USA - Wide Plastic Cursor, Curved Braces, Modern Logo, Red and Black Text
Front Scale
K, A [ B, ST, T, S, C ] D, DI
Back Scale
L, DF [ CF, CIF, CI, C ] D, DI
Note:with retail box. Sleeve is brown suede leather with plastic insert.
Donated by the Huang Collection.


S539 Pickett N1010SL-ES Super Power Trig
Pickett N1010SL-ES Super Power Trig
Made in USA - 22 scales
Front Scale
#1,   #2, A [ B, ST, T Cot, S Cos, C ] D, DI, K
Back Scale
L, DF [ CF, CIF, CI, C ] D, DI, Ln


ISRM Pickett 1010-T Duplex c1955 (metal bar curor)
Pickett 1010-T Duplex
Made in USA - Note: metal bar cursor, rounded braces. This was Pickett's first design concept.
Front Scale
K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale
DF [ CF, CIF, CI, C ] D, L
Original Owner: Mel Jackson, class of '59.


Pickett 1010-T Duplex c1957 (cast metal bars)

ISRM 12.08.05.03


Lyle Wells with wife Antoinette, Belgium, 1946
Pickett 1010-T Duplex
Made in USA - Note: Cast metal cursor bars and cast "clamshell" end braces. This style was only produced for two years.
Front Scale (artwork #74)
K, A [ B, ST, T  Cot, S Cos, C ] D, DI
Back Scale (artwork #271)
DF [ CF, CIF, CI, C ] D, L
Donated by Lyle Wells of Henderson, Nevada who used this in his career.
Lyle Wells was born May 26, 1923. He married his wife, Antoinette, in 1946 in Belgium while he was in the Army. They were married for 65 years and have one son. Lyle was drafted on March 12, 1943 and served until 1953 spending most of his time in France, Belgium and Germany as a master sargeant in the 515 engineer outfit. After returning to the United States, Lyle was an operating engineer for over 20 years and also owned two businesses. He was a recreational pilot and remembers needing to have a slide rule in order to obain his pilot's license. Although he was only able to go to school until the 8th grade before having to earn a living. Lyle remembers that his wife, who spoke 5 languages, was always better than him with the slide rule. At 89 years of age as of 2012, Lyle rides his mountain bike an average of 10-15 miles per day and the only pills he takes are vitamins. (Biography contributed by Donna Silva of Wishing Well Glass.


S180 Pickett N1010-T Trig Duplex
Pickett N1010-T Trig Duplex
Made in USA
Front Scale
K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale
DF [ CF, CIF, CI, C ] D, DI


Pickett N1010-T Trig Duplex c1959

ISRM 12.06.24.47
Pickett N1010-T Trig Duplex
Made in USA - Plastic Bar Cursor, Square Braces, Round Black Logo, Red and Black Text
Front Scale (artwork 74)
K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale (artwork 272)
L, DF [ CF, CIF, CI, C ] D, DI
Note: Pickett & Eckel, Inc label
Original Owner: Hauserman (marked on upper stock)
Donated by Anonymous collector and Daughter


Pickett N1010-T Trig Duplex c1964

No longer at ISRM
Pickett N1010-T Trig Duplex
Made in USA - Plastic Bar Cursor, Curved Braces, Modern Logo, Red and Black Text
Front Scale
K, A, [B, ST, T  Cot, S Cos, C] D, DI
Back Scale
L, DF [ CF, CIF, CI, C ] D, DI
Note: Address of Pickett is now Santa Barbara, Calif.
Owned by Paul Roller Michaelis Ph.D., Louisville, Colorado
Paul received his doctorate from John Hopkins University in 1978 and is a Consulting Member of the Technical Staff at Avaya in the Denver area.


S331 Pickett 1011-ES Trig-Exponential
Pickett 1011-ES Trig-Exponential
Made in USA
Front Scale
K, A [ B, ST, T Cot, S Cos, C ] D, DI
Back Scale
Ln, DF [ CF, CIF, CI, C ] D, DI, L


S408 Pickett 1020-ES National Radio Institute
Pickett 1020-ES National Radio Institute
Made in USA by Pickett for NRI
Front Scale
K, A [ B, ST, T, S, C ] D, DI
Back Scale
2π, DF [ CF, L, CI, C ] D, DI


REF Pickett 1025 Helical Spring Design - 1952-56


The 1025 replaced these 1947 & 1952
Wallace Barnes ASC Cardboard versions
Pickett 1025 - Helical Spring Design - 1952-56
Made in USA - Associated Spring Corp (ASC) - Original design(c)1952
Front Scale
P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale
P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Original owner: J.B. Beckwith, Spring Designer at ASC
Archive - donated by Jack Rababeh, Senior Engineer at ASC
1952 Manual 3.41Mb


Pickett 1025 - Helical Spring Design 1957-1958

ISRM 13.09.17.02

Pickett 1025 - Helical Spring Design - 1957-1958
Made in USA - Associated Spring Corp (ASC) - Design©1952
Front Scale (artwork #107):
P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale
P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Original owner: Tom Pulley, engraved on slide.


S127 Pickett 1025 - Helical Spring Design



A low cost 1960 cardboard version of the times
Pickett 1025 - Helical Spring Design - c1959
Made in USA - Associated Spring Corp (ASC) - Design©1952
Front Scale
P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale
P or M [ N (number of coils), DT, G, E, D, ■ ● ] d


REF  Pickett 1025 -
Helical Spring Design - 1962
Pickett 1025 - Helical Spring Design - 1962
Made in USA - Associated Spring Corp (ASC)
Front Scale
P/f or M/T [ S, KT, D (Dia O.D. coil), D/d, ■ ● ] d (dia O.D. wire)
Back Scale
P or M [ N (number of coils), DT, G, E, D, ■ ● ] d
Archive - donated by Jack Rababeh, Senior Engineer at ASC

 



S249 Pickett - Fisher Control Valve Sizing Rule
Pickett - Fisher Control Valve Sizing Rule ©1954
Made in USA - Fisher Governor Co, Marshal Town, Iowa
Front Scale
Steam Valve Sizes, Pressure Drop, D [ C, Sp Gr, Viscosity, Flow, Q] D, Cv, Liquid Valve Sizes
Back Scale
P1, PC, PSIG [ P0, ∆P, Sp.Gr., Gas Temp., Quality, Q ] Cg, CS, Gas valve Sizes


S089 Pickett 1041 - Fisher Universal Valve Sizing Rule
Pickett 1041 - Fisher Universal Valve Sizing Rule (c)1967
Made in USA - Fisher Governor Co, Marshal Town, Iowa
Front Scale
PSI, Pressure Drop [ Inlet press., Gas SG, Temp, C1 Q] D, Cg/Cs, %QC1
Back Scale
∆P, %QC2 [ P1, CIF, L, CI, C ] Q, Cv, Cg


S486 Pickett N1041-GP Fisher  Universal Valve Sizing
Pickett N1041-GP - Fisher Universal Valve Sizing Rule -c1970
Made in USA - Fisher Governor Co, Marshal Town, Iowa -(c)1967
Front Scale
PSI, Pressure Drop, %QC2 [ Inlet press., Gas SG, Temp, C1, Q ] D, Cg/Cs, %QC1
Back Scale
∆P, %QC2 [ P1, Inlet Density, Flow Q ] Cv, Cg
Instruction Card


REF Pickett 1050 Fuller Traffic Rule
Pickett 1050 Fuller Traffic Rule -  c1950
Made in USA - Used by the L.A.P.D.
Front Scale
Distance  [ coefficient of friction ] speed
Back Scale
MPH, FT/sec [ C ] D, A
Archive - Scan provided by Nick Stuph




REF Pickett 1060 Dow Chemical Corp

Thomas C. Mandrell (1919-2002)
Pickett 1060 Dow Chemical Corp
Made in USA by Pickett for Dow Chemical Corp. c1950
Front Scale (Artwork Code 87)
A [ B, CI, C ] D, L
Back Scale (Artwork Code 88)
Gas Flow [ Pipe Dia Gas, Pipe Dia Air, Pressure Sum (Length in Miles)] Pressure Difference
Archive - Scan provided by Rick Mandrell in honor of his father Thomas C. Mandrell Thomas C. Mandrell used this slide rule during his career: Mandy was born on a farm in Western Oklahoma in 1919, served as a B-17 pilot in Germany; shot down in 1944 and spent a year as a German POW. Returned from the war and graduated from the University of Oklahoma with a BS in Chemical Engineering. He worked at Dow Chemical in Freeport and Houston, Texas from the late 1940's until 1984. Spent most of his career in Dow's pipeline department. His career culminated with assignments in Calgary, Canada; Hong Kong; and Adelaide, South Australia working on international projects for Dow. He died in 2002 in Houston, Texas


Pickett 1060-ES Dow Chemical Corp

ISRM 11.05.14.01
Pickett 1060-ES Dow Chemical Corp
Made in USA by Pickett for Dow Chemical Corp - c1960
Front Scale (Artwork Code 87)
A [ B, CI, C ] D, L
Back Scale (Artwork Code 88)
Gas Flow [ Pipe Dia Gas, Pipe Dia Air, Pressure Sum (Length in Miles)] Pressure Difference
Donated by Rick Mandrell in honor of his father Thomas C. Mandrell
Thomas (Mandy) Mandrell (1919-2002) used and collected these slide rules while working for Dow Chemical Co's pipeline department. See Mandy's extended biography on the Pickett 1060 above. Note that both slide rules use the same artwork throughout the manufacturing changes.
 

REF Pickett 1072 Connecticut Spring Corp

Pickett 1072 Connecticut Spring Corp
Helical and Flat Spring Design - 1962
Made in USA by Pickett for Connecticut Spring Corp
Front Scale
T, D [ dh, D/d, c(b/h), M or P ] STRESS
Back scale
dh [ dc, DT, Tors (b/h), N, G, E, C(RATIO b/h), ] MTR
Archive - Scan provided by David Hecht Collection
 

REF Pickett 1080 Refinery Supply Co.

Pickett 1080 Refinery Supply Co. - 1953
Made in USA by Pickett for Refinery Suppy Company, Tulsa-Houston
Front Scale
A-Coefficient [ b-Cubic Feet, C-Diff. ] D-Pressure Vacuum
Back scale
A [ C, CI, C] D
Archive - Scan provided by Franco Maddaleno, Italy
 

REF Pickett 1082 Easterly Rafter Framer

Pickett 1082 Easterly Rafter Framer
Made in USA by Pickett - Designed by John I, Easterly, Watsonville, CA c1957
Front Scale
CR (Common Rafter) Hip-Vally Scale [ G ] H
Back scale
CR (Common Rafter) Hip-Vally Scale [ E ] F
Archive - Clay Castleberry Collection
 

REF Pickett 1084 Resistance Design

Pickett 1084 Resistance Design - 1954
Made in USA by Pickett
Copyright (Designed by) S.E. Hardaway
Front Scale
Ohms, Lemgth and wire gage
Back scale
K, A, DF [ CF, T, S, CI, C] D, L
Archive - Scan provided by Franco Maddaleno, Italy
 

REF Pickett N1090-ES Connor Spring Co

Pickett 1090-ES Connor Spring Co
Helical and Flat Spring Design - 1962
Made in USA by Pickett for Connor Spring Co
Front Scale
d [ D, ■ T ●, DT, ■ ●, E, G, N ] Rf or Rt
Back scale
d [ D, S, ■ T ●, ■ ●, D/d ] P or M
Archive - David Hecht Collection
N1090-ES Pickett Manual 3.41Mb


REF Pickett 1100 - Helical and Flat Spring Design - 1962

Pickett 1100 - Helical and Flat Spring Design - 1962
Made in USA - Associated Spring Corp (ASC)
Front Scale - Flat Springs
Pounds/M [ Length, Material Properties, Wire Shape Correction factor, Width] Thickness
Back Scale - Helical Springs
Pounds/M  [ No.Coils, Material Properties, ■ ● , Mean Dia ] Wire Dia
Archive - Donated by Jack Rababeh, Senior Engineer at ASC


Another ASC slide rule made by K&E


REF Pickett Retail Display Stand 1970

Pickett Retail Display Stand 1970
Made in USA for retail stores and university bookstores
N1010-ES ($12.95)
N1010SL-ES ($14.95)
N200-ES ($6.95)
N902-ES ($5.95)
N4-ES ($29.95)
N3P-ES ($13.95)
N3-ES ($26.95)
N500-ES ($16.95)
N600-ES ($10.95)
Archive - Photo and prices courtesy of Tom Bullock

Pickett Teaching (Classroom size) Slide Rules


Go to Pickett Demonstration and Teaching Slide Rules
Pickett manufactured large slide rules for mounting in class rooms. They came in 4 foot and 7 foot versions. The stock and slide are of plywood (tounge and grooved), the end brackets are sheet aluminum. The cursor consisted of pine with aluminum paint, with a clear plastic lens. Both sizes came with metal eye loops for hanging from a wall or ceiling.


Pickett & Eckel Historical Timeline

1943 Pickett company founded, in Chicago, by Roswell Colvert Pickett, a printer.
1943 Art Eckel joins Ross Pickett to form Pickett & Eckel.
1944 First Pickett & Eckel slide rules made from printed paper card stock are sold.
1946 The first magnesium slide rules are made, called the Deci-point.
1946 Ross moves to California to start another division. Chicago company managed by Mr. Florian.
1948-49 Art Eckel leaves company. Ross's son, John Pickett, receives BS in Engineering from the University of Redlands
1949-50 John Pickett receives MS in business from University of Southern California
1949-50 The Eckel name is dropped from the slide rule (purportedly because of a law suit with K&E). Company name remains Pickett & Eckel
1951-1967 John Pickett joins Pickett Marketing Department
Early 1950's Pickett contracts with Cal-Pan Co. to make aluminum slide rules in Alhambra, CA.
1953-54 Cal-Pan bought out by Pickett & Eckel.
1953-54 John Pickett forms Pacific Leather Works to make slide rule cases.
1957 John Pickett becomes president of Pickett & Eckel.
1964 Pickett moves to Santa Barbara.
1964 Pickett family sells company to Times Mirror Co for $1.5 million. Name changes to Pickett Industries.
1967 John Pickett leaves Pickett Industries.
1969 Roswell (Ross) Covert Pickett dies Dec 23, 1969 in Santa Barbars, CA.
1974 Pickett Industries moves to Nogales, Mexico.
1975 Pickett Industries combined into Chartpack/Pickett under Chartpack management.
1975-79 Slide rule manufacturing ends. Drafting supplies continue.
1979 Pickett moves to Tucson from Nogales.
c1980 Dick Schwartzer buys the entire Pickett slide rule inventory that was destined for scrap
1985 Pickett Industries sold to Chartpack.
1998 Manufacturing combined with Chartpack in Leeds, Massachusetts.
1999 Pickett-Chartpak Industries Division continues manufacturing art and drawing templates.
2005 Current address: Chartpak, Inc - One River Road - Leeds, Ma 01053 (413)584-5446
2005 Dick Schwartzer dies. A large inventory of plastic Picketts left unsold.
Timeline researched by Bruce Reichelt, expanded by Mike konshak

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