FREDERICK POST

KEEP ISRM FREE!
Frederick Post Co., Chicago, founded 1890, was a distributor of US brand slide rules, and other engineering supplies, which were typically relabeled standard products from well-known manufacturers from around the world. At one time or another Post brand slide rules were made by Dennert & Pape (became Aristo), Nestler, A.W. Faber (became Faber-Castell), Hemmi, Lawrence Engineering Service, Charvoz-Roos, Bruning and Gilson. Post also sold branded slide rules from Richardson, Vicari, Boucher, Sexton, Halden, Chandler, Ritow and Winslow. Richardson was a supplier to Post in 1912 and Post began importing Sun Hemmi slide rules with the Post brand around 1920. Until about 1932, some Post models were made by a variety of German manufacturers, including by Koch, Huxhold & Hannemann from 1925 to 1930. During WWII, Charvoz-Roos and Lawrence supplied slide rules were branded with the Post name. After WWII, frederick Post again worked with Sun Hemmi to rebrand slide rules From 1945 to April, 1952 they were labeled "Made In Occupied Japan" (MIOJ). After April, 1952 slide rules were just stamped "Made In Japan" as before the war. Post was acquired by Teledyne in 1970. The Versalog 1460 made specifically for Post by Hemmi is their most well known and collected slide rule.
See Who Actually Manufactured Frederick Post Brand Slide Rules? compiled by Paul Ross, as well as his Frederick Post Slide Rule Cross Reference at The Slide Rule Trading Company.



Teledyne Post 1426 Business (Hemmi P452)

ISRM 10.12.12.01
Teledyne Post 1426 Business (Hemmi P452)
Made in Japan by Hemmi - date Code TH (Aug 1969)
Front Scale
LL1,LL2, LL3, CR DF [ T CF, CIF, % CI, T C ] R D, L, 11in, 23cm
Back Scale
ST, K, A [ B, BI, CI, C ] PQ D, P, S, T
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.


Teledyne Post 1420 (Hemmi P261)

REF
Teledyne Post 1426 (Hemmi P261)
Made in Japan by Hemmi (c1969)
Front Scale
LL01,LL02, LL03, DF [ T CF, CIF, CI, C ] D, LL3, LL2, LL1
Back Scale
T Cot, ST ST, K, A [ B, BI, CI, C ] D, L, P, S Cos
Archive - Scan by Steve Seale Collection


P128 Post 1441 w/ magnifier
(early model)
Post 1441 w/ magnifier  (early model)
Made in Japan - Note little rivets on ends
Front Scale
4in // A [ B, C ] D || 10cm
Back Scale: [S, L, T ]
Back Blank.


P129 Post 1441 w/ magnifier
Post 1441 w/ magnifier
Made in Japan - No rivets on front
Front Scale
4in // A [ B, C ] D || 10cm
Back Scale: [S, L, T ]
Back Blank.


P147 Post 1441 w/ magnifier (Late model)
Post 1441 w/ magnifier (Late model)
Made in Japan by Hemmi - Note: Post logo
Front Scale
4in // A [ B, CI, C ] D
Back Scale: [S, L, T ]
Back Blank.


Post 1442 Dual 10in/5in Slide Rule Duplex

ISRM 12.06.23.03
Post 1442 Dual 10in/5in Slide Rule - c1945
Made in USA - Same as Charvoz-Roos SR-108
Front Scale
K, A [ B, S, T, C ] D, DI
Back Scale
Fraction-Decimal [ L L, C2, C1 ] D1, D2, D
Original owner: G.W. Schults (marked on both edges of stock).
Manual 7.56Mb


P122 Post 1444 (Pre-WWII
Post 1444 (Pre-WWII)
Made in Japan
Front Scale
5 inch // A [ B, CI, C ] D
Back Scale
[ S, L, T ]


Post 1444-D Commerce (1941-1945)
ISRM 14.01.10.02
Post 1444-D Commerce
Made in the U.S.A (Possibly by Charvoz Roos) - as a replacement for the Hemmi 1444 during WWII
Plastic laminated mahogany. Other version use bamboo, which did not warp over time, like this specimen.
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Gift Of Bill Wehrend Collection, Palo Alto, California.


Post 1444K (Hemmi 34RK) MIOJ 1945-1952
ISRM 14.01.10.03
Post 1444K (Hemmi 34RK) MIOJ
Made in Occupied Japan - "Made In Occupied Japan" (MIOJ) is a term used for the time period from 1945 (after World War II) through April 25, 1952; it was during this time that the Allies "occupied" Japan.
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Advertisement (on sleeve): Keyes Tank company, Provo, Utah.
Gift Of Bill Wehrend Collection, Palo Alto, California.


P121 Post 1444K
Post 1444K
Made in Japan - date code IB (Feb 1958)
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]


P170 Post 1444K
Post 1444K
Made in Japan - date code KJ (Oct 1960)
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]


Post 1444K w/ Manifying Cursor

ISRM 14.01.03.06
Post 1444K w/ Manifying Cursor
Made in Japan - date code OD (April 1964)
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Gift Of Phillip Rodley, Upper Hutt, New Zealand


Post 1444-P

ISRM 12.02.12.02
Post 1444-P Closed Simplex
Made in USA by Charles Bruning, Preferred Utilities Promo on back
Front Scale
12.5cm // A [ B, CI, C ] D, K \\ 5in
Back Scale: [S, L, T ]
Back Blank.


Note: Body same as Bruning 2401


P231 Post 1445 5 in
Post 1445 5 in Closed Simplex
Note: Pre-war production, the later 8 inch was given the 1445 model number
Made in Japan by "Sun" Hemmi
Front Scale: 5in // DF [ CF, CI, C ] D
Back Scale: [ S, L, T ]
Original Owner: Franklin James Sullivan, (1914-1992) born in  Wilmington, Delaware. Cost Analyst at Baldwin's outside of Philadelphia, PA (1940-1945), then at Atlas Powder Company (Du Pont)/ICI. Had 3 daughters, one provided this slide rule.


Post 1445 8 in

ISRM 09.01.12.41
Post 1445 8 in Closed Simplex
Has same resolution as a 10 inch scale.
Made in Japan by Hemmi - Post Oval Logo on slide
Front Scale
K, DF [ CF, CI, C ] D, A
Back Scale
[ TI, L, SI ]
Donated by David Hecht Collection, Alexandria, Virginia
3 Ring Binder Sleeve


Post 1445P 8 in

ISRM 12.03.15.01
Post 1445P 8 in
Has same resolution as a 10 inch scale.
Made in Japan by Hemmi, dup-lex style construction
Front Scale
K, DF [ CF, CI, C ] D, A
Back Scale
[ TI, L, SI ]
Back: Frederick Post, Chicago
Previous owner embossed a lamb on the braces


Post 1446 (Pre-WWII)

ISRM 11.12.15.02
Post 1446 (Pre-WWII)
Made in Japan - Bamboo
Front Scale
A [ B, C ] D
Back Scale
[ S, L, T ]
Back: Conversion Chart


Post 1446-D Student Version 1 (cWWII)

ISRM 12.05.02.06


Expanded Family Biography of Wallace and Ruth Kane and daughter Ann Kilby (7.09MB)

See other slide rules from this talented family in the Circular, K&E, Pickett, Ricoh, and Post Galleries.
Post 1446-D Student Version 1 (cWWII)
Note wide molded Cursor design
Made in USA by Charvos-Roos
Front Scale:25cm || A [ B, CI, C ] D, K || 10in
Back Scale: [ S, L, T ] with Conversion Chart
Note: Note 'K' scale and linear scales on edge. Previous models made by Hemmi did not have them. Because the transitional delivery of the 1446 during WWII from other OEM's than Hemmi had the 'K' scale, once the war was over and shipping from Japan began again, the 'K' scale was added to the post-WWII Post 1446.
Owned by Wallace E. Kane, Kingston, Washington. Donated by step-daughter Anne Kilby, Kingston, Washington

Wallace E. Kane (2005)
.
Wallace Kane, born in Wisconsin (1930), used this slide rule early in his education.He attended Lawrence College in Appelton, Wisconsin. and later he enlisted in the Air Force. He was given duties as a musician, stationed at Keflavik, Iceland. He again pulled out his slide rule to obtain his masters degree in physics from the University of Wisconsin in Madison, WI. After graduation he worked at Lawrence Radiation Laboratory at Livermore (now LLNL) where he married fellow physicist Ruth Mary Farwell Kilby (later: Moira Kane) (1921-2007) (Ruth also has a slide rule on display at ISRM). The couple relocated to the Puget Sound area in 1973 to work as a physicist for the Navy at Keyport, Washington for the next 33 years where he retired at age 75.


Post 1446-D Student Version 2 (cWWII)

ISRM 12.05.02.07
Post 1446-D Student Version 2 (cWWII)
Note narrow molded plastic Cursor design, same as Dietzgen 1767P
Made in USA by lawrence Engineering
Front Scale:25cm || A [ B, CI, C ] D, K || 10in
Back Scale: [ S, L, T ] with Conversion Chart
Note: Note 'K' scale. Previous models made by Hemmi did not have it. Because the transitional delivery of the 1446 during WWII from other OEM's than Hemmi had the 'K' scale, once the war was over and shipping from Japan began again, the 'K' scale was added to the post-WWII Post 1446.
Owned by Wallace E. Kane, Kingston, Washington. notice his name ink-stamped on the back of the rule. Donated by step-daughter Anne Kilby, Kingston, Washington
See Wallace Kane biography above.


Post 1446 Made in Occupied Japan (post-WWII)

ISRM 09.01.12.42
Post 1446 Closed Simplex
Stock and Cursor marked "Made in Occupied Japan"
Front Scale
A [ B, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Note: Added 'K' Scale.
Donated by David Hecht Collection, Alexandria, Virginia


P174 Post 4" Pocket 1447
Post 4" Pocket 1447 - Closed simplex
Made in Japan by Sun Hemmi
Front Scale: 4in // A [ B, C ] D || 10cm
Back Scale: [ S, L, T ]
Back: Stamped Sun Logo
Note: The 1447 model number evidently started out as a 4" pocket rule then migrated into the 10" models that follow. The 4" rules became 1441's.


S448 Frederick Post 1447 cWWII
Frederick Post 1447 cWWII
Made in USA - OEM could be Acu-Rule, Dietzgen, Charvoz-Roos
Same as Charvoz-Roos SR-105M (S395) and Dietzgen 1767P (S001)
Note: Scales are a plastic laminate over wood like the Hemmi but not bamboo Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart


S452 Post 1447 Post WWII
Post 1447 - post  WWII
Made in Occupied Japan (no Post Logo)
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart


Post 1447 (No Post Logo) 1952

ISRM 09.01.12.43
Post 1447 - Date Code CB on front face
Made in Japan - notation 'Sun Hemmi Japan' - No Post logo
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Donated by David Hecht Collection, Alexandria, Virginia


Post 1447

ISRM 09.01.12.44
Post 1447 - Closed simplex
Made in Japan - Notation 'Sun Hemmi Japan', Oval Post Logo on upper stator
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart

Instructions
5.87MB pdf

Abraham
Jacobson
Manual Donated by Anne Hollek, in memory of her Grandfather, Abraham (Jake) Jacobson. (1890-1986) WWI and WWII veteran, man of faith and optimism, retired from the U.S. Post Office. Inventor - US Patent# 2939147 issued 1960.


Post 1447 (1951)

ISRM 04.04.22.02
Post 1447 - date code dcBI
Made in Japan - Notation 'Hemmi Japan', Post Oval Logo On Slide
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
Original Owner (written on case): Jim Huste, who contacted the ISRM when he saw his slide rule displayed at ISRM. Jim is the co-founder of TransLanTech Sound in New York City, NY. Jim's radio career includes over 12 years as a DJ, Music and Program Director. He has been Chief Engineer of nine radio stations including WOMC in Detroit, WYNY and WOR in New York and Pirate Radio, Los Angeles before forming TransLanTech.


REF Post 1447 DP Projection Rule
Post 1447 DP Projection Rule
Made in Japan by Sun Hemmi
Upper Scale
A [ B, CI, C ] D, K
Lower Scale
A [ S, L, T ] D, K
Archive - Not in Collection


Post 1447P Mannheim Duplex (1968)

ISRM 14.01.10.16
Post 1447P Mannheim Duplex dcSI (Sep 1968)
Made in the U.S.A - An all-plastic version of the very popular plastic-laminated bamboo model Post 1447 used by many students.
Front Scale: A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Gift Of Bill Wehrend Collection, Palo Alto, California.
2.96MB PDF


S334 Post 1449 Mannhiem
Post 1449 Mannhiem - Closed simplex
Patent 22129, British patent 107562, Brevete S.G.D.G.
Made in Japan by Sun Hemmi
Front Scale
10in // A [ B, C ] D || 28cm
Back Scale
[ S, L, T ]
Back: Conversion Chart (faded)


S075 Post 1450 Versatrig (c1949)
Post 1450 Versatrig - Duplex
Made in Japan by Hemmi, rebranded for Frederick Post.
Note: Upper stock shows "Frederick Post CO." and Lower stock has Date Code LK - Nov 1961
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2
Original Owner: Boulder, CO


S335 Post 1450 Versatrig (1961)
Post 1450 Versatrig - Duplex
Made in Japan by Hemmi, rebranded for Frederick Post.
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2


Post 1450 Versatrig Duplex (1971)

ISRM 14.01.10.13
Post 1450 Versatrig - Duplex dcVE (May 1971)
Made in Japan by Hemmi, rebranded for Frederick Post.
Note: Upper stock shows "Frederick Post". Company "CO." was dropped. Lower stock has Date Code. These are very subtle differences.
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2

Note: the above leather sleeve has shrunk to the point that it is difficult to put the slide rule back in it.


REF Post 1451 Pocket Versatrig
Post 1451 Pocket Versatrig - Duplex
Made in Japan by Hemmi - c1957, 6-5/8 inch long
Front Scale
L, A [ T T, SecT ST, Cos S, C ] D, DI
Back Scale
K, DF [ CF, CIF, CI, C ] D, R1, R2
Archive - Ebay Photo


S443 Frederick Post 1452 - US Patent 1/81722
Frederick Post 1452 - Closed Simplex
Made in Germany by [?]- US Patent 1/81722
Front Scale
10 // A [ B, CI, C ] D, K || 26cm
Back Scale
[ S, L, T ]
Back: Table of Constants 


S327 Post 1452 C-type Cursor
Post 1452  - Early C-Type Cursor
Made in Japan
Front Scale
10 // A [ B, CI, C ] D, K || 25cm
Well: Extended Linear Scale
Back Scale
[ S, L, T ]
Back: Conversion Chart
Original Owner put "buy American" in well


S024 Post 1452 Universal
Post 1452 Universal - Closed Simplex
Made in Occupied Japan
Front Scale
10 // A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ]
Back: Conversion Chart


Frederick Post 1452-D Universal c1945

ISRM 14.07.02.48
Frederick Post 1452-D Universal
Made in U.S.A by Acu-Rule Mfg. Festus, Missouri.
Front Scale: 10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale: [ S, L, T ]
Back: Conversion/Geometry Chart
Gift Of Ed Millis, Dallas, Texas.


S023 Frederick Post 1452-D
Frederick Post 1452-D - Closed Simplex
Made in U.S.A
Front Scale
10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart


Frederick Post 1452-D Universal c1945

ISRM 14.07.02.48
Frederick Post 1452-D Universal
Made in U.S.A by Acu-Rule Mfg. Festus, Missouri.
Front Scale: 10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale: [ S, L, T ]
Back: Conversion/Geometry Chart
Gift Of Ed Millis, Dallas, Texas.


Frederick Post No.1452T c1935

ISRM 14.07.02.47
Frederick Post No.1452T
Made in Japan by Sun Hemmi. Pre-WWII with Quot/Prod aid labels
Front Scale: 10in // A [ B, CI, C ] D, K || 28cm
Back Scale: [ S, L, T ]
Back: Missing Conversion Chart
Gift Of Ed Millis, Dallas, Texas.


Post 1452W Universal

ISRM 11.10.30.02
Post 1452W Universal - date code LA (Jan 1961)
Made in Japan by Sun Hemmi for Frederick Post
Front Scale
10in // A [ B, CI, C ] D, K || 27cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart
Original Owner Initials: H.K.


S297 Post 1452P
Post 1452P - Wide Closed Simplex
Made in USA by Charles Bruning
Front Scale
10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale
[ S, L, T ]
Back: Conversion


S076 Post 1457
Post 1457 - Simplex - c1945
Made in U.S.A
Front Scale
T, DF [ CF, CIF, CI, C ] D, S. ST
Back Scale
Conversions [ B, K, L, C ] Trig Identities


S017 Post 1458
Post 1458 Duplex
Made in U.S.A
Front Scale
K, A [ B, S, T, CI ] D, L
Back Scale
DF [ CF, CIF, C ] D


S072 Post 1459
Post 1459 - Duplex
Made in Japan
Front Scale
K, A [ B, CI, C ] D, T
Back Scale
Theta, Re, P [ Q, Q', C ] LL3, LL2, LL1
Original Owner: R.Williams


Post 1460 Versalog - Marked Hemmi 258 (1951)

ISRM 09.01.12.46
Post 1460 Versalog - Marked Hemmi 258, dcBA
Made in Japan by Hemmi - Date code BA - March 1951
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black. This is the first and only version where Hemmi 258 appears on a Post Versalog. The case only has Hemmi on it.
Donated by David Hecht, Alexandria, VA


Post 1460 Versalog

ISRM 11.08.28.01

Retail Box label - Price in 1953 = $26.25, DAU Bookstore (Defense Acquisition University, part of the Department of Defense)

Post 1460 Versalog - No S/N
Made in Japan by Hemmi - Date code DC - September 1952
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Donated by Enn Veskimets, Lutherville, Maryland.
Enn Veskismets obtained this slide rule in 1952 while attending Ballard High School in Seattle, Washington. He attended the University of Washington in Seattleand graduated with a degree in Civil Engineering in 1959. He enlisted in the U.S. Army and worked at the Aberdeen Proving Grounds (1959-1962), and after an honorable disharge, continued to work with the Army Corps of Engineers in Baltimore, Maryland from 1962-1992. He retired as Chief Engineer (P.E), in the Design Branch. Enn said he would hide his slide rule in his father medical bag in high school as if you hung it on your belt, you would be called a geek. He later acquired a pocket version of the 1460, the Post 1461, in 1957, also shown in this gallery.


Post 1460 Versalog (1954 Black Cos)

ISRM 13.10.22.02

Stephen Joseph Rosty (1921-2012).was born in Passaic, NJ to Stephen and Rose (Mikulski) Rosty. During WWII Stephen served in the US Navy aboard the USS Martin. In 1955 Stephen married Frances M. Wozniak, they were married for 56 years until her death on Oct 31, 2011. Stephen received his Masters Degree in Electrical Engineering from the Newark College of Engineering, Newark, NJ. He worked for Burroughs and Bendix Aviation Co., and then Singer-Kearfott Corp, Little Falls, NJ. He had two daughters, Rosanne Rosty and Roberta Rosty.
Post 1460 Versalog - No S/N
Made in Japan by Hemmi - Date code EB - Feb 1954
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Original owner: Stephen R. Rosty, of Saddle Brook, New Jersey. Name marked on case and on stock
Gift of Roberta Rosty, Saddle Brook, New Jersey
This slide rule, and another in the Frederick Post Gallery, belonged to Roberta's Father, Stephen Joseph Rosty (see biography on left). Roberta also worked in a technical field as she has 2 Patents: number 4,410,393 issued October 18, 1983Preparation of steel surfaces for adhesive bonding by etching with H.sub.3 PO.sub.4 -polyhydric alcohol mixture 4,835,016 Mar 28, 1988 Adhesive bonding. Both for The United States of America as represented by the Secretary of the Army.


Post 1460 Versalog (1957 Black Cos)

ISRM 12.06.24.21
Post 1460 Versalog - sn826144
Made in Japan by Hemmi - Date code HF - June 1957
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Black
Original owner, case marked with 3 separate owners (unreadable)
Donated by the Huang Collection..
The collector, 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.


S078 Post 1460C Versalog
Post 1460C Versalog - S/N 020522
Made in Japan by Hemmi - Date code JK - Nov 1959
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Blue


Post 1460 Versalog (1967 Green Cos)

ISRM 12.06.24.22
Post 1460 Versalog - S/N 817456
Made in Japan by Hemmi - Date code RF - July 1967
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Green
Donated by the Huang Collection..


Post 1460 Versalog (1969 Green Cos)

ISRM 14.06.11.01
Post 1460 Versalog - S/N 831572
Made in Japan by Hemmi - No Date. Purchased in 1969 for $18.30USD.
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL0, LL/0, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note: Cos label printed in Green
Gifted by Bill Geren of Dallas, Texas..
Bill writes: "I bought it new in 1969 when I first started taking Engineering at the University of Texas at Arlington. It didn't get used much at all since I changed my major. Shortly after that, as you know, electronic calculators were starting to become available so the slide rule took it's 40+ year home in the closet". This pristine slide rule was kept in its original retail box.


Post 1460 Versalog II (1969 - A scale)

ISRM 12.06.24.23
Post 1460 Versalog II (with A scale)
Made in Japan by Hemmi - Date code TE - May 1969
Front Scale
logX, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Donated by the Huang Collection.


S215 Post 1460 Versalog II - USAFA Issued
Post 1460 Versalog II
Made in Japan by Hemmi - Date code TG - July, 1969
Front Scale
logX, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Donated by K.C. Schwarz, who used this at the U.S. Air Force Academy (CS-29) in Colorado Springs, CO. K.C. graduated in 1975 after commanding the Honor Squadron. He served as a C-9A medical evacuation pilot and aircraft reliability engineer during his years in the Air Force. Later, working for Northrop, he led the support simulation and modeling group on the B-2 (Stealth) Bomber program. In 1990 K.C. moved to Colorado and served at Ball Aerospace for several years. He later moved into investment banking and then began working with startup and early-stage companies. He has founded several high tech and aerospace companies in the systems integration and satellite surveillance markets.



Post 1461 Electronic (1936)

ISRM 09.01.12.47
Post 1461 Electronic
Made in Japan by Hemmi for Frederick Post Co.- 1936
Note: Scale labels use Times Roman font.
Front Scale: L, K, A [ B, CI, C ] D, T(tau), G(theta)
Back Scale: Theta, R(theta), P [ Q, QI, C ] LL3, LL2, LL1
Donated by David Hecht, Alexandria, VA
Note that this is a rare slide rule as this model number was later used to identify the pocket 1461 Versalog which became a companion to the 1460 Versalog.


Post 1461 Versalog (Pocket) 1957

ISRM 11.08.28.02

Enn Veskimets (2010)
Post 1461 Versalog (Pocket)
Made in Japan by Hemmi - Date code HK - November 1957
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/0, LL/00, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note 1: Cos label printed in Black. No 'A' or 'B' scale.
Note 2: 'Post' oval logo appears only on upper stock opposite of "Sun" Hemmi and Frederick Post markings
Donated by Enn Veskimets, Lutherville, Maryland.
Enn obtained this slide rule in 1957 while attending University of Washington in Seattle, Washington. He graduated with a degree in Civil Engineering in 1959. He enlisted in the U.S. Army and worked at the Aberdeen Proving Grounds (1959-1962), and after an honorable disharge, continued to work with the Army Corps of Engineers in Baltimore, Maryland from 1962-1992. He retired as Chief Engineer (P.E), in the Design Branch. Enn said he would hide his slide rule in his father medical bag in high school as if you hung it on your belt, you would be called a geek. He acquired his first slide rule, the Post Versalog 1460, while attending Ballard High School in Seattle (also shown in this gallery). Both slide rules served him well over his career.


ISRM Post 1461 Versalog (Pocket) 1967

ISRM 10.03.01.07

Prof. Robert C. Eaton
Post 1461 Versalog (Pocket)
Made in Japan by Hemmi - Date code RF - June 1967
Front Scale
LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/0, LL/00, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Note 1: Cos label printed in Green. No 'A' or 'B' scale.
Note 2: 'Post' oval logo appears one both sides of the slide. "Sun" is dropped from the Hemmi mark.
Donated by Prof. Robert C. Eaton, PhD., Boulder, Colorado
Robert C. Eaton (1946 - present) used this slide rule starting in 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.


Post 1461 Versalog II (Pocket) 1969

ISRM 09.01.12.45
Post 1461 Versalog II (Pocket) dcTG
Made in Japan by Hemmi - Date code TG - July 1969, Modified Scales & Labels
Front Scale: L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale: LL/0, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, L00
Note: Cos label printed in Green
Note 1: This Versalog II has an 'A' scale but no 'B' scale. The original Versalogs 1460 and 1461 have neither.
Note 2: 'Post' oval logo appears only on one sides of the slide. The extra space is used for formula labels.
Donated by David Hecht, Alexandria, Virginia


Frederick Post No.1462 Duplex c1945

ISRM 14.01.10.12
Frederick Post No.1462 Duplex c1945
Made in U.S.A. - Note: White Plastic Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Gift Of Bill Wehrend Collection, Palo Alto, California.


S211 Post 1462
Post 1462 - Duplex
Made in U.S.A. - Note: Black Plastic Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T


Post 1462

ISRM 10.12.12.01
Post 1462 - Duplex
Made in U.S.A. - Note: Metal Ends
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Donated by the estate of James Robert Weber, Lafayette, Colorado
James Robert Weber (1928-2010) Served in the U.S. Air Force, then joined Martin Marietta in Colorado and worked on the ICBM project. In 1965 he was hired on as pilot and technician for National Center of Atmospheric Research (NCAR) flew many flights using a Cessna 172 and a T-28 into storms as part of the National Hail Research Experiment (NHRE), and later the Microscale Meteorology Division. Later James was responsible for maintaining NCAR's link to the University Satellite Network which was connected to the Woods Hole Oceanographic Institution and other U.S. research centers. He retired from NCAR in 1993 after 28 years of service. He is survived by his wife Lois Anne.


Post 1462H PostTrig

REF
Post 1462H - PostTrig
Made in Occupied Japan by Hemmi. MIOJ marking were from August 1945 until April 28, 1952
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Currently owned by John Roe, Bill roe's son
Owned by William S. Roe who help found the National Association of Rocketry in 1958. This slide rule can be seen doing Altitude Redustion in an eary NAR 16mm promotional movie. The hands in the picture belong to Bill's son, John Roe, who helped provide the scan. Bill used this slide rule in Japan when he was stationed there. Bill was a great influence and father figure to many young rocketeers of that era including the curator of ISRM.


Post 1462H PostTrig

ISRM 09.01.12.117
Post 1462H - PostTrig
Made in Occupied Japan by Hemmi. MIOJ marking were from August 1945 until April 28, 1952
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
Markings of Owner: H.L Dillingham, North Highlands, 4104 Alan Drive.


REF C04 Post 1464
Binary
Post 1464  Binary Slide Rule 8in 21.1cm dia.
Made in USA - Gilson Slide Rule Co.
Front Scales
C,CI,A,K,Log,LL1,LL2,LL3,LL4,Binary, Fraction,Drill,Thread, Millimeter
Back Scales
Degrees, S, T, Degrees, S, T, Degrees, S, T, Fractions
Equiv Manual 3.42Mb


Post 1491 - For Chemical Engineer

REF
Post 1491 - For Chemical Engineer
Made in Japan by Sun Hemmi (same as Hemmi 257)
Front Scale
L, A, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Back Scale
Ch(A~M), Ch(N~Z), M1 Xw [ M2 X, Temp(F,C,K)°, F(t) ] Kg/cm2, P mmHg Atm, P inHgVac Lb/in2 Gage , tω °C
Archive - Steve Seale Collection


S081 Teledyne Post 44CA-600 Versalog II
Teledyne Post 44CA-600 Versalog II
Made in Japan by Hemmi
Front Scale
L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Note: The Versalog II has an A scale but the original Versalog does not.


P087 Teledyne Post 44DA-610 Versalog II
Teledyne Post 44DA-610 Versalog II
Made in Japan by Hemmi
Front Scale
L, LL/1, LL/2, LL/3 [ T/T, SecT/ST, Cos/S, C ] D, LL3, LL2, LL1
Back Scale
LL/00, K, A, DF [ CF, CIF, CI, C ] D, R1, R2, LL0
Note: The Versalog II has an A scale but the original Versalog does not.


Retail Display - Try before you buy

Year Codes
A B C D E F G H I J K L M
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962
N O P Q R S T U V W X Y Z
1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975
Month Codes
A B C D E F G H I J K L
Jan. Feb. Mar. Apr. May June July Aug. Sep. Oct. Nov. Dec.

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