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Aristo was a slide rule manufacturer since 1872. Dennert & Pape was founded by
Johann Dennert & Martin Pape, in Hamburg, Germany, and
continued under that name until 1936. D&P were the first to laminate and engrave
celluloid on boxwood wood slide rules in 1886.
Mahogany was used after 1888 and in 1902 started producing
slide rules using the System Rietz scales designed by Max Rietz.
Aristo began using "DUPA" as a trademark from 1924 to 1936. However, in 1925, the brand became better known as "Aristo", which appeared on slide rules along with "D&P". By 1936 "Aristo" became te official trademark on all their plastic slide rules. The plastic slide rules used Astrolon for the stock and Plexiglas for the cursor. The D&P company name officially became Aristo in 1948 when they introduced all-plastic Duplex slide rules
and discontinued mahogany wood models. The first System Darmstadt from D&P was sold in 1939. Aristo stayed in the slide rule business until the end of 1978, a run of 106 years. Aristo was one of the most important slide rule manufacturers world wide.
Read this article from the Journal of the Oughtred Society Vol 6.1: DENNERt & PAPE and ARISTO Slide Rules 1872 - 1978
Aristo 109 Rietz (20inch/50cm) 1943
ISRM 14.02.10.01
Donald Henry Northcote (1921-2004), Professor of Plant Biochemistry, University of Cambridge, England, and Master of Sidney Sussex College Cambridge, from 1976 to 1992.
He used the aove slide rule in his scientific work. Prof. Northcote was a laboratory scientist: a chemist and electron microscopist. His laboratory was in the Department of Biochemistry, Tennis Court Road, Cambridge, England. He has another slide rule in the Blundell gallery. His daughters, June and Mary, also have slide rules displayed on ISRM in the Thornton and Hemmi galleries.
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Aristo 109 Rietz (20inch/50cm) 1943
Made by Dennert & Pape in Hamburg, Germany- date code 432 (Feb 1943)
Note: The date code indicates this was manufactured during WWII under Nazi control.
Note: 'Railroad track' style divisions
Front Scale (Extended): 50cm // K, A [ B, CI, C ] D, L || 1:25 13in
Back Scale: [ S, S & T, T ] Back: Equivalents
Note: Missing back hairline for transferring trig scales
Gift of June Northcote, UK, in memory of her father Donald Northcote
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Aristo 109 Rietz (20inch/50cm) 1969
ISRM 21.05.22.01
Aristo 1364 Sleeve Insert
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Aristo 109 Rietz (20inch/50cm) 1969
Front Scale (Extended): 50cm // K, A [ B, CI, C ] D, L
Back Scale: [ S, ST, T ]
Cursor Hairlines" Q, KW, PS, d
Note: Rear hairline for transferring trig scales
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Aristo 1068 Scholar (20inch/50cm) Log Log
ISRM 22.03.10.02.X
Aristo 1367 Sleeve Insert
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Aristo 1068 Scholar (20inch/50cm) Log Log
Front Scale (Extended): LL00, LL01, LL02, A [ B, L, K, C ] D, LLL3, LL2, LL1
Back Scale: T Cot, ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Cursor Hairlines" Q, KW, PS, d
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REF Dennert And Pape No. 1a
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Dennert And Pape No. 1a - c1880
Made in Germany
Front Scale:
A [ B, C ] D
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Dennert & Pape Chisel Cursor
ISRM 24.07.04.51
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Dennert & Pape Chisel Cursor - c1901-1920
Made in Germany
Front Scale:
10in // A [ B, C ] D || 27cm
Well: 27-51 cm
Back Scale: [ S, L, T ]
Back: English engineering data.
Tom Dilatush Collection
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Dennert & Pape ALTONA Mannheim
REF
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Dennert & Pape ALTONA Mannheim - c1901-1920
Made in Germany - Patent DRP No. 126499
Note: 'Railroad track' divisions. Rare split window cursor frame.
Front Scale:
25cm // A [ B, C ] D || //
Well: 29-54 cm. #010 is in the well
Back Scale: [ S, L, T ]
Back: Equivalents (German)
Archive - Photo By Jacek Szukowski Collection, Poland
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Dennert & Pape Mannheim
REF
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Dennert & Pape Mannheim - c1901-1920
Made in Germany - Patent DRP No. 126499
Front Scale:
10in // A [ B, C ] D || 29cm
Well: 29-54 cm. #09 is in the well
Back Scale: [ S, L, T ]
Archive - Tom Dilatush Collection, California
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Dennert & Pape Mannheim
REF
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Dennert & Pape Mannheim - c1901-1920
Made in Germany
Front Scale:
10in // A [ B, C ] D || 27cm
Well: 27-51 cm. #10 is in the well
Back Scale: [ S, L, T ]
Archive - Tom Dilatush Collection, California
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Dennert & Pape System Rietz
ISRM 11.10.26.02
Owned by Roman Marian Russek (1933-2011). Roman Russek was known for his wide knowledge of power cables and, in later years, for his expertise
the transfer of technology within international joint ventures. During WWII, as a teenager he was forced to work for the German occupation as a translator.
By the close of WWII Roman was a member of the Polish Army under
British command. With Communism descending on his homeland his left to study in Britain where he
earned engineering degrees from Heriot Watt University (Edinburgh) and London University.
Continued on right.
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Dennert & Pape System Rietz - c1921-1937
Made in Germany - shows patent D.R.P.126499
Front Scale:
27cm // F(K), A [ B, C ] D, E(L) || 1:25
Back Scale: [ S, T ]
Note 1: #23 is in the well. The glass is from a later Aristo model
Note 2: This is an early instance of the 'Aristo' brand as it is stamped on the stock with D&P
Donated by the wife of Roman Russek, Shiela Russek of Toronto, Canada. Photo provided by daughter Irene Casey (nee Russek).
Cont'd.: By 1949 he was a Scientific Officer in the Wood Lane Research Laboratories of British Insulated Callenders
Cables in London. There he was assigned to teams studying the mechanical behavior of aluminum sheaths,
electrical characteristics of oil impregnated paper as well as assisting in the development of flexible
joints for submarine cables destined to be used in the HVDC link between North and South Island in New Zealand.
As Design Engineer and then Department Manager Roman
traveled widely within Canada and internationally representing CWC in many negotiations and discussions
with customers and associated firms. He was fluent in five languages. Later as Vice-President Technical
Services Roman spent another 14 years transferring technology
from the domestic company to the many fledgling associate companies in Mexico, Colombia, Venezuela,
Dominican Republic, Ireland, Spain, Brazil. South Africa, Nigeria, New Zealand, Australia and Iran.
Roman and his wife Shiela spent much of their retirement years traveling around the world.
An
Article about Roman Russek by his friend
XAVIER KATAQUAPIT
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Dennert & Pape No.21 Elektro Log Log
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Dennert & Pape No.21 Elektro Log Log - c1901
Made in Germany. Patent: D.R.P, No126499
Front Scale:
25cm // Dynamo, LogLog, L [ A mm2 (HP), B, C ] D, LogLog, Volt (Spann.-Veri.) || 1:25
Well: 20-53.8 cm. #21 is in the well
Back Scale: [ S, L, T ]
Gift of Leroy Hausler Collection
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REF Dennert And Pape No. 28
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Dennert And Pape No. 28 - c1926
Made in Germany
Front Scale:
27cm // A [ B, C ] D || 10in
Well: 10-21 inch
Back Scale: 13cm, 5in
Archive - Tom Dilatush Collection
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REF Dennert And Pape HR1 Celestial Navigation
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Dennert And Pape HR1 Celestial Navigation- c1940
Made in Germany - Hamburg, Altona
Front Scale:
I: 0° - 90° in one direction, 90° - 180° in the other direction
II: 0° - 90° in one direction, 90° - 180° in the other direction
Archive - Tom Dilatush Collection
Notes:
This German U-Boat Version type HR1 (Höhenrechenschieber) was a simple dual concentric cylinder ,though a progression from the original Bygrave rule invented in England in the 1920s and designed to solve the PZX triangle. The German Navy required ever greater accuracy for position fixing in special circumstances, one of which was covert opperations, the HR1 was developed to a point where a solution with an error of less than ½ a minute of arc or within about 1 ½ minutes could be calculated. See Position Line Slide Rules by Ronald W.M. van Riet.
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Dennert & Pape - Aristo 10072
Hazen-Williams Hydraulic Slide Rule
REF
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Dennert & Pape - Aristo 10072 - c1950
Hazen -Williams Hydraulic Slide Rule
Made in Hamburg, Germany - Western Zone
Front Scale:
11in // 1 [ 2, 3a, 3b ] 4
Back Scale: [ 5, 6a, 6b ] 28cm
Archive - Tom Dilatush Collection
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D&P 5in (J.Lewis) No Mod. Num. c1925
ISRM 20.04.01.169
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D&P 5in (J.Lewis) No Model Number c1925
Made in Hamburg-Altona, Germany by Dennart & Pape, Stamped J. Lewis.
Note: Aluminum Framed cursor. Railroad Track Scales with Screws
Front Scale:A [ B, C ] D
Back - Scale:
14.6cm [ S, L, T] 5-3/4inch
Back Promo: Gurney Ball Bearings, Marlin-Rockwell Corporation. Jamestown, N.Y.
Gift Of Philip Stanley Collection
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Dennert & Pape 11cm Pocket Mannheim (c1925)
ISRM 20.04.01.172
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Dennert & Pape 11cm Pocket Mannheim (c1925)
Made in Germany by Dennert & Pape. Note screws on back.
Front Scale:
A [ B, CI, C ] D
Back Scale:
11cm [ S, L, T] 4.25in
Multiple hairlines
Back Adv: The Cole Co., Columbus, Ohio
Gift Of Philip Stanley Collection
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Aristo Nr.082 Mannheim
ISRM 20.04.10.035
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Aristo Nr.082 Mannheim (no date code)
Made in Germany by Dennart & Pape
Front Scale (Extended):
13cm // A [ B, C ] D
Back - Scale: blank
Back Adv: Walther & Cie. A-G. Köln-Dellbrück
Gift Of Philip Stanley Collection
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Aristo Nr.82 Mannheim
ISRM 20.04.10.153
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Aristo Nr.82 Mannheim (no date code)
Made in Germany by Dennart & Pape
Front Scale (Extended):
13cm // A [ B, C ] D
Back - Scale: [ S, L, T ]
Back Adv: KÄRCHER HEIZGERÄTE WINNENDEN
Gift Of Philip Stanley Collection
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Aristo Nr.89 Rietz (version 1) (1943)
ISRM 20.04.01.004
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Aristo Nr.89 Rietz (version 1) Date Code 431 (1943)
Made in Hamburg-Altona, Germany by Dennart & Pape
Note: Thin Film folded cursor. Sleeve is Faux Alligator skin.
Front Scale (Extended):
13cm // K, A [ B, CI, C ] D, L
Back - Scale:
5inch [ S, ST, T]
Multiple hairlines
Gift Of Philip Stanley Collection
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Aristo 89 Rietz (version 2)
P066
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Aristo 89 Rietz (version 2) Date Code 5018 (1950)
Made in Germany
Front Scale:
13cm // K, A [ B, CI, C ] D, L
Back Scale:
5inch [ S, ST, T]
Multiple hairlines
Original Owner/Location: Hartmut E. Nieman/Germany
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Aristo Nr.89 5-in Rietz (1955)
ISRM 18.04.06.120
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Aristo Nr.89 5-in Rietz Date Code G5514 (1955)
Made in Geretsreid, Germany
Front Scale:
5in // K, A [ B, CI, C ] D, L
Back Scale:
13cm [ S, ST, T]
Multiple hairlines
Promo Advertising: P.C.McKenzie, Pittsburg, PA
Gift of Leroy Hausler Collection.
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Aristo Nr.89 13-cm Rietz (1959)
ISRM 22.03.01.91
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Aristo Nr.89 13-cm Rietz Date Code G5926 (1959)
Made in Geretsreid, Germany. Red "Made in Germany"
Front Scale:
13cm // K, A [ B, CI, C ] D, L
Back Scale:
5in [ S, ST, T]
Multiple hairlines
Promo Advertising: FREGESTA, Sweden
Gift of Philip Stanley Collection.
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Aristo Nr.89 13-cm Rietz (1960)
ISRM 23.03.01.89
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Aristo Nr.89 13-cm Rietz Date Code G6020 (1960)
Made in Geretsreid, Germany. Black "Made in Germany"
Front Scale:
13cm // K, A [ B, CI, C ] D, L
Back Scale:
5in [ S, ST, T]
Multiple hairlines
Promo Advertising: Cobenam
Gift of Philip Stanley Collection.
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Aristo Nr.89 14cm Rietz (1966)
ISRM 09.01.12.71
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Aristo Nr.89 14cm Rietz Date Code GFF15 (1966)
Made in Geretsreid, Germany
Front Scale:
14cm // K, A [ B, CI, C ] D, L
Back Scale:
5inch [ S, ST, T]
Multiple hairlines
Donated By David Hecht, Alexandria.
Note: The box has "Spare Slide October, 1959" written on it. This is a bit peculiar, because the date code on the
slide rule is clearly 1966. It may have been inadvertantly switched by the previous owner(s).
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Aristo Rietz 89 14cm (1972)
ISRM 09.10.21.02 |
Aristo Rietz 89 14cm Date Code 3LI9 (1972)
Made in Germany at the Geretsried factory
Front Scale:
14cm // K, A [ B, CI, C ] D, L
Back Scale:
[ S, ST, T]
Multiple hairlines
Donated by Marten C. Jensen
Martin is a reliability engineer who used this SR
(and others in the ISRM galleries), while working at
Motorola Semiconductor in Phoenix, AZ.
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Aristo 99 Rietz (28cm)
ISRM 24.08.05.01
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Aristo 99 Rietz (cm Scale) dcG5412 (1954)
Made in Germany at Geretsried plant
Front Scale (extended):
28cm // K, A [ B, CI, C ] D, L
Back Scale:
11inch [ S, ST, T]
Multiple hairlines: HP
Gifted by Margret Holland of Wake Forest, North Carolina. Belonged to husband's father.
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Aristo 99 Rietz (11in)
ISRM 15.05.12.01
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Aristo 99 Rietz (11in) dcG596 (1959)
Made in Germany at Geretsried plant
Front Scale (extended):
11inch // K, A [ B, CI, C ] D, L
Back Scale:
28cm [ S, ST, T]
Multiple hairlines: HP
Gifted by Colin Barnes, UK
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Aristo 99 Rietz (transparent 28cm)
ISRM 09.01.12.72
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Aristo 99 Rietz (transparent 28cm) - Date Code GFF11 (1966)
Made in Germany at Geretsried plant
Front Scale (extended):
28cm // K, A [ B, CI, C ] D, L
Back Scale:
[ S, ST, T]
Note: transparent body
Multiple hairlines: HP
Donated by David Hecht, Alexandria, Virginia
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Aristo 203 Projector Slide Rule
REF |
Aristo 203 Projector Slide Rule (in Leitz Prado Projector)
Made in Germany by Aristo-Werke, circa 1960's
Front Scale:
L, K, A [ B, CI, C ] D, S, ST, T
Note: transparent body
Multiple hairlines: HP
Archive - Prof. Jörn Lütjen Collection, Germany
This projector resides in Jörn's home. At present time it is lend out to the "Altonaer Museum" in
Hamburg, Germany for a two year exhibition on the former factory Dennert & Pape.
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Aristo 602 (1972)
REF |
Aristo 602 (1972)
Made in Germany
Front Scale:
A ( B, -50%/+100%(Mark-Up) )
Back: TBD
Archive - Wenzel Collection
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Aristo 615 Aviat
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Aristo 615 Aviat
See Aerospace Gallery
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Aristo 622 (1970)
REF |
Aristo 622 (1970)
Made in Germany
Front Scale:
K, D, A,( B, CI )
Back: TBD
Archive - Wenzel Collection
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Aristo Meracator (Commerz) 623
ISRM 23.08.03.01 |
Aristo Meracator (Commerz) 623
Made in Germany
Front Scale:
English-Metric Conversions, A( B, CI, -50%/+100% (Mark-Up) )
Back: Blank
Gift Of Carolyn Murphy of Australia
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Aristo Commerz 623
REF |
Aristo Commerz 623
Made in Germany
Front Scale:
English-Metric Conversions, A( B, CI, -50%/+100% (Mark-Up) )
Back: TBD
Archive - Wenzel Collection
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Aristo 661 Naviat - Nautical Navigation
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Aristo 661 Naviat - Nautical Navigation
See Aerospace Gallery
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Aristo 801 Rietz (Charvoz-Roos)
ISRM 09.01.12.73
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Aristo 801 Rietz - No Date Code
Made in Germany for U.S. Company Charvoz-Roos Corp., 10 Park Place, Wood Ridge, New Jersey (later 50 Colfax Avenue, Clifton, New Jersey)
Front Scale:
K, A [ B, CI, C ] D, L
Back: Blank
Multiple hairlines: Kw, PS
Donated By David Hecht, Alexandria, Virginia
 Retail box marked with price of $2.95
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Aristo 803 Scholar (1954)
ISRM 20.04.01.080
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Aristo 803 Scholar - Date Code G542 (1954)
Made in Geretsried, Germany by D&P
Front Scale:
L, K, A [ B, CI, C ] D, S, ST, L
Back: Blank
Multiple hairlines: Kw, PS
Gift Of Philip Stanley Collection
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Aristo 810 4 Inch Pocket Slide Rule
ISRM 18.04.06.121
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Aristo 810 4 Inch Pocket Slide Rule
Note: Missing Cursor
Made in Germany
Front Scale:
4in // A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Back Promo: Modern Blueprint
Gifted by Leroy Hausler Collection
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Aristo 810 10-cm Pocket Slide Rule
ISRM 20.01.20.04
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Aristo 810 10-cm Pocket Slide Rule dcGFF2
Made in Germany (printed in black)
Front Scale:
10cm // A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Gifted by Dr. Michael Sachs. of Elkins Park, Pennsylvania.
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Aristo 810 10-cm Pocket Slide Rule
ISRM 22.03.01.88
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Aristo 810 10-cm Pocket Slide Rule dcG581
Made in Germany (printed in Red)
Front Scale:
10cm // A [ B, CI, C ] D, K
Back Scale: [ S, L, T ]
Gifted by Philip Stanley.collection, Worchester, Massachusettes.
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Aristo 811 "PUCK" Simplex (1957)
ISRM 20.04.01.390
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Aristo 811 "PUCK" Simplex - Date Code 572
Made in Germany
Front Scale:
4in // A [ B, CI, C ] D
Back : [ blank ]
Gift Of Philip Stanley Collection
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Aristo 812 Simplex (1953)
ISRM 20.04.01.238
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Aristo 812 Simplex - Date Code G531 (1953)
Made in Geretsried, Germany
Front Scale:
5in // A [ B, C ] D
Back Scale: [ S, L, T ]
Back: original owner P.L.SMART embossed back
Gift Of Philip Stanley Collection
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Aristo 812 Simplex (1955)
ISRM 21.10.05.01
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Aristo 812 Simplex - Date Code G553 (1955)
Made in Geretsried, Germany
Front Scale:
13cm // A [ B, C ] D
Back Scale: [ S, L, T ]
Original owner: Edward Taylor Wood.( -1999). Born in Mass. He aided his father in setting up one of the first nylon (hosiery) machines ever in the USA before the war as a machinist/engineer for Stromberg-Carlson in Rochester NY and in his later years, worked in the silk mills just after the war. He was as a resident of Arizona.
Back: Occidental Electric Company, Nogales, Arizona.Mechanical Engineers - Industrial Refrigeration
Gift Of Steve Rigg of Tucson, Arizona.
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Aristo 814 Elektro (1957)
ISRM 20.04.01.211
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Aristo 814 Elektro - Date Code G572 - c1957
Made in Wörgl, Germany by Dennert & Pape
Front Scale (extended):
13cm // LL2, A (Kw) [ B (Hp), CI, C] D, LL3
Front Well: V, D/M = G/M (3~)
Back Scale: 5in [ Sin, Lg, Tg ]
Multi-lined Cursor
Additional Cursor hairline on slide
Gauge points for resistance of metal wire
Gift Of Philip Stanley Collection
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Aristo 815 Elektro (1970)
ISRM 20.04.01.330
|
Aristo 815 Elektro date code 2LA01
Made in Hamburg, Germany by Dennert & Pape.
Note: Transparant back for slide scales and linear drawing scales on edges.
Front Scale (extended):
13cm // K, A (Kw) [ B (Hp) (P),BI, CI, C] D, DM(=), V \\ 6in
Back Scale: [ S, ST, L, T ]
Multi-lined Cursor
Gauge Points: p, (HP=735), (PS=746), Ö (3), p'', 220, p', 380, cu = 175, al = 270, al = 290, cu = 890
Note: Gauge points for resistance of metal wire
Gift Of Philip Stanley Collection
|
REF Aristo 815E Elektro
|
Aristo 815E Elektro
Made in Hamburg, Germany by Dennert & Pape
Front Scale (extended)
13cm // K, A (Kw) [ B (Hp) (P),BI, CI, C] D, DM(=), V \\ 6in 1/20 scale
Back Scale: [ S, ST, L, T ]
Multi-lined Cursor
Gauge Points: p, (HP=735), (PS=746), Ö (3), p'', 220, p', 380, cu = 175, al = 270, al = 290, cu = 890
Note: Gauge points for resistance of metal wire
Archive - Scan by Atsushi Tomozawa Collection
|
Aristo 829 Multi-Rietz (1962)
ISRM 20.04.01.124
| Aristo 829 Multi-Rietz dc621 (1962)
Made in Germany
Front Scale:
13cm, P, A [ B, T Cot, ST, S Cos ] D, DI, 5in
Back Scale:
K, DF [ CF, CIF, CI, C] D, L
Multiple hairlines
Gift Of Philip Stanley Collection
|
Aristo 845 Commerz (1964)
ISRM 20.04.01.299
|
Aristo 845 Commerz dcG641 (1964)
Made in Geretsried, Germany
Front Scale:
13cm // KZ [ T2, P, T1 ] Z, M, Conversion Gauge Marks
Back Slider: [ £, s./d.]
Gift Of Philip Stanley Collection
|
Aristo 867U Darmstadt (no date)
ISRM 18.04.06.117 |
Aristo 867U Darmstadt - (no date)
Made in Germany in by Dennert & Pape, Hamburg.
Note transparent linear scales and Labels in the form of equations.
Front Scale:
15cm(transparent) // x3(K), x2(A) [ x2(B), 1/x2(BI), 1/x(CI), x(C) ] x(D), √(1-x2)(P), sin, tg \\ 6in(Transparent)
Back Scale: [ lgx(L), e0.01x(LL1), e0.1x(LL2), ex(LL3)]
Multiple hairlines
|
Aristo 867U Darmstadt
ISRM 07.02.12.01 |
Aristo 867U Darmstadt - dc 61 23 (1961)
Made in Germany in Hamburg or Geretsried - Note transparent linear scales
Front Scale:
15cm(transparent) // K, A [ B, BI, CI, C ] D, P, S, T \\ 6in(Transparent)
Back Scale: [ L, LL1, LL2, LL3]
Multiple hairlines
Back Adv: ASEA (Allmänna Svenska Elektriska Aktiebolaget) - A Swedish
company that built 9 nuclear plants in Sweden in 1960's
Donated by Russell Fox, Anchorage, Alaska.
This slide rule was used by his father who purchased it in Germany 1961-1964. He worked as an
Electrical Engineer with BPA in Portland, Oregon. BPA and ASEA had a joint venture
in providing electrical energy.
|
Aristo 867U Darmstadt
ISRM 09.01.12.74
|
Aristo 867U Darmstadt - dc HF023 (1965)
Made in Hamburg, Germany - Note transparent linear scales
Front Scale:
15cm(transparent) // K, A [ B, BI, CI, C ] D, P, S, T \\ 6in(Transparent)
Back Slider: [ L, LL1, LL2, LL3]
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
|
Aristo 867U Darmstadt
ISRM 11.10.26.01
|
Aristo 867U Darmstadt - dc 2LA06 (1970)
Made in Hamburg, Germany - Note transparent linear scales
Front Scale:
15cm(transparent) // K, A [ B, BI, CI, C ] D, P, S, T \\ 6in(Transparent)
Back Slider: [ L, LL1, LL2, LL3]
Multiple hairlines
Belonged to Roman Russek. Donated by Shiela Russek, Toronto, Canada
|
Aristo 868 Studio (Variation 1) (1958)
ISRM 20.04.01.005
|
Aristo 868 Studio (Variation 1) date code 582
Made in Germany
Note: "Aristo-Studio" above the "T" scale
Front Scale:
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
T, ST, DF [ CF, CIF, CI, C ] D, P, S
Multiple hairlines: PS, KW
Gift Of Philip Stanley Collection
|
Aristo 868 Studio (Variation 2) (1962)
ISRM 09.01.12.75
|
Aristo 868 Studio (Variation 2) - date code 622 (1962)
Made in Germany - Metal Cursor bars
Note: "Aristo-Studio" below the "S" scale
Front Scale:
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
ST, T Cot DF [ CF, CIF, CI, C ] D, P, S Cos
Multiple hairlines: PS, KW
Donated by David Hecht, Alexandria, Virginia
|
Aristo 868 Studio (Variation 3) (1973)
ISRM 04.11.10.01
|
Aristo 868 Studio (Variation 3) - date code 2LST5 (1973)
Made in Germany - Plastic Cursor Bars
Note: "Aristo-Studio" on the slide face
Front Scale:
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
ST, T Cot DF [ CF, CIF, CI, C ] D, P, S Cos
Multiple hairlines: PS, KW
 New In Box
|
Aristo 869 Studiolog dc2LI5 (1972)
REF
|
Aristo 869 Studiolog dc2LI5 (1972)
Made in Germany - 30 scales
Front Scale(extended)
LL00, LL01, LL02, LL03, A [ B, BI, K, L, CI, C ] D, LL3, LL2, LL1, LL0
Back Scale:
ST ST, T1, T2, DF [ CF, CIF, S, CI, C ] D, DI, P, S Cos
Multiple hairlines: PS, KW
Archive - Rod Lovett Collection UK.
|
Aristo 870 Multilog (Charvoz)
ISRM 09.01.12.89
|
Aristo 870 Multilog - date code 592 (1959)
Made in Germany for US Brand Charvoz - Metal Cursor Bars
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Donated by David Hecht, Alexandria, Virginia
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Aristo 870 MultiLog (1965)
ISRM 12.03.21.02
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Aristo 870 MultiLog DateCode 6501 (Jan 1965)
Made in Germany - note plastic ends and metal cursor bars
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Donated by Henry (Hank) Benoit, Kingston, Ontario, Canada
Henry Benoit (BSEE 1968, MSc 1970) had a hands-on biomedical engineering career in OB/GYN research at University of Toronto and clinical engineering at University of Ottawa Heart Institute. His graduate work focussed on electroanesthesia and electrosleep. During the 70s he applied an early Fairchild charge-coupled device to observation of internal organs and designed portable instrumentation based on the RCA COSMAC computer chip set and the FORTH language. Later he contributed to excimer laser applications in cardiac ablation surgery and integration of electronic technologies into clinical settings. This slide rule was obtained during college to compliment his Aristo 0970 Multilog.
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Aristo 870 Multilog (New In Box)
ISRM 04.11.10.02
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Aristo 870 Multilog - date code 2FL09 (1967)
Made in Germany - Plastic Cursor Bars
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
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Aristo 870 Multilog
ISRM 22.03.01.87
|
Aristo 870 Multilog - date code 2LST1 (1973)
Made in Germany - Plastic Cursor Bars Yellow slide both sides
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Gift from Philip E. Stanley of Worchester, Mass
|
Aristo Nr.890 Rietz (1972)
ISRM 20.04.01.007
|
Aristo Nr.890 Rietz Date Code 3LI5 (1972)
Made in Geretsried, Germany by Dennart & Pape
Front Scale (Extended):
14cm // K, A [ B, CI, C ] D, L
Back Slide: [ S, ST, T] (Have to flip slide over to use trig scales)
Back: blank
Multiple hairlines
Gift Of Philip Stanley Collection
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Aristo 0901 Junior dcWFX25 (1969)
ISRM 15.05.12.02
|
Aristo 0901 Junior Simplex - dcWFX25 (Austria)
Made in Austria - Note Logo Stamped in Braces
Front Scale:
DF [ CF, CIF, CI, C ] D, A, K
Back - Blank
Multiple hairlines: v, d, q
Gifted by Colin Barnes, UK
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Aristo 0901 Junior dc3LS12 (1973)
ISRM 22.05.06.20
|
Aristo 0901 Junior Simplex - dc3LS12 (1973) (Germany)
Made in Austria - Note Logo Molded in Braces
Front Scale:
DF [ CF, CIF, CI, C ] D, A, K
Back - Blank
Multiple hairlines: v, d, q
Gifted by Nancy Ulrich, Ted Ulrich Collection.
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Aristo 902 Scholar (1952)
ISRM 12.05.27.01
|
Aristo 902 Scholar - date code dc522 (1952)
Made in Hamburg, Germany
Front Scale:
25cm, L, A [ B, CI, C ] D, S, T, 10inch
Back: Blank
Multiple hairlines
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Aristo 0903-T Scholar Charvoz (1959)
ISRM 12.06.24.54
|
Aristo 0903-T Scholar Charvoz
Made in Germany - Note back table and scale arrangement - date code dcG5968 (1959)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scales:
Unit Equivalents [ fractions to decimal ] Unit Equivalents
Multiple hairlines
Donated by the Huang Collection.
|
Aristo 0903 Scholar
ISRM 09.01.12.76 |
Aristo 0903 Scholar
Made in Germany - Note different scales - date code 3FX5 (1969)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scales:
25cm [ ] 8-0,0-8 in
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 0903 Scholar
ISRM 09.01.12.77 |
Aristo 0903 Scholar
Made in Germany - date code WLA06 (1970)
Note: Aristo and Model number in red
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scales:
25cm [ ] 8-0,0-8 in
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
|
Aristo 0903 Scholar
ISRM 09.01.12.78 |
Aristo 0903 Scholar
Made in Germany - Note different scales - date code 3LT41 (1974)
Front Scale:
L, K, A [ B, BI, CI, C ] D, S Cos, ST ST, T Cot
Back: Blank
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 0903LL Scholar Log Log
ISRM 17.05.22.05 |
Aristo 0903LL Scholar Log Log
Made in Germany - date code G5925 (1959)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scale:
25cm [ S, LL2, LL3] 10in
Multiple hairlines
Donated by Pam Eaton of Dennis, Massachusettes
|
CREI Aristo 0903LL Scholar (Charvoz)
Capitol Radio Engineering Institute
ISRM 09.01.12.79 |
CREI Aristo 0903LL Scholar (Charvoz)
Capitol Radio Engineering Institute
Made in Germany - date code G6011 (1960)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scale:
25cm [ S, LL2, LL3] 10in
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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S102 Aristo 903LL Scholar (early)
REF S102
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Aristo 903LL Scholar (early) Simplex
Made in Germany - Note different scales
Front Scale:
25cm, K, A [ B, CI, C ] D, S, T, L
Back Scale:
[ S, LL2, LL3]
Multiple hairlines
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Aristo 903LL Scholar (with BI scale)
ISRM 13.01.01.02
|
Aristo 903LL Scholar (with BI scale) dc3FL4 (1969)
Made in Germany - Note different scales
Out of 14 different 903 Scholar variations, this is the only one with a BI scale.
Front Scale:
L, K, A [ B, BI, CI, C ] D, S, ST, T
Back Scale:
[ S, LL1, LL2, LL3]
Multiple hairlines
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Aristo 903LL Scholar
ISRM 14.09.08.04
|
Aristo 903LL Scholar dc 3?249
Made in Germany - No Logo Stamped (or molded) in Braces
Front Scale:
L, K, A [ B, CI, C ] D, S, ST, L
Back Scale:
25cm [ S, LL2, LL3] 8 inch(bi-directional)
Multiple hairlines
Gift of Edward Wright, Odenton, Maryland.
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Aristo 903LL Scholar
ISRM 04.11.10.04
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Aristo 903LL Scholar dc3FX80 (1969)
Made in Germany - Note Logo Stamped (or molded) in Braces
Front Scale:
L, K, A [ B, CI, C ] D, S, ST, L
Back Scale:
25cm [ S, LL2, LL3] 8 inch(bi-directional)
Multiple hairlines
Original Owner/Location: Petra Schlvmev
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Aristo 903LL Scholar II dc G6237 (1962)
ISRM 15.05.12.04
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Aristo 903LL Scholar II dc G6237 (1962)
Made in Germany - Note different scales/end pieces
Front Scale:
L, K, A [ B, CI, C ] D, S, ST, T
Back Scale:
25cm [ S, LL2, LL3] 10 inch
Multiple hairlines: Ps, Kw
Gift of Colin Barnes, UK.
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Aristo 0903LL VS-2 Scholar
ISRM 14.09.08.06
|
Aristo 0903LL VS-2 Scholar
Made in Germany - date code G6136 (1961)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back - Scale:
25cm DF [ CF, C ] D, 10in
Multiple hairlines
Original owner: Keith A.C. Wilson, marked on stock and sleeve.
Gift of Edward Wright, Odenton, Maryland.
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Aristo 0903 VS-2 Scholar
ISRM 09.01.12.80 |
Aristo 0903 VS-2 Scholar
Made in Germany - date code 3FE49 (1968)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scale:
25cm DF [ CF, C ] D, 10in
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 0903 VS-2 Scholar
ISRM 09.01.12.81 |
Aristo 0903 VS-2 Scholar
Made in Germany - date code 3LS15 (1973)
Front Scale:
L, K, A [ B, CI, C ] D, S Cos, ST ST, T Cot
Back Scale:
DF [ CF, C ] D
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 0905 Shut-Commerz (Commerce) 1962
ISRM 14.09.08.05
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Aristo 0905 Shut-Commerz (Commerce) dc G6233
Made in Germany
Front Scale:
-%/+%, KZ [ T2, P, T1 ] Z, M, £, s/d
Back Scale: 25cm [ Blank] 8-0in, 0-8in
Gift of Edward L. Wright, Odenton, Maryland.
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Aristo 0905 Shut-Commerz (Commerce) 1968
ISRM 09.01.12.82 |
Aristo 0905 Shut-Commerz (Commerce)
Made in Germany - date code 3FE74 (1968)
Front Scale:
-%/+%, KZ [ T2, P, T1 ] Z, M, £, s/d
Back Scale: 25cm [ Blank] 8-0in, 0-8in
Donated by David Hecht, Alexandria, Virginia
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Aristo 0906 Bi-Scholar
ISRM 09.01.12.83 |
Aristo 0906 Bi-Scholar
Made in Germany - date code 3LA91 (1970)
Front Scale:
K, A [ B, BI, S, C ] D, L, P
Back Scale:
ST ST, T1 Cot1, T2 Cot2, DF [ CF, CIF, CI, C] D, DI, S Cos
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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S055 Aristo 0906LL Scholar LL
|
Aristo 0906LL BiScholar LL Duplex
Made in Germany
Front Scale:
L, K, A [ B, BI, S, C ] D, LL3, LL2, LL1
Back Scale:
ST ST, T1 Cot1, T2 Cot2, DF [ CF, CIF, CI, C] D, P, S Cos
Multiple hairlines
Original Owner/Location: Unk/Germany
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Looking for: Aristo 907
|
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Aristo 0908 TriLog dcGFF25
ISRM 09.01.12.84 |
Aristo 0908 TriLog dcGFF25
Made in Germany
Front Scale:
T1 Cot1, T2 Cot2, A [ B, BI, CI, C ] D, P, S Cos, ST ST
Back Scale:
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, L, K
Multiple hairlines: PS, KW
Original Owner: R.Hewings
Donated by David Hecht, Alexandria, Virginia
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Aristo 0908 TriLog
S252
|
Aristo 0908 TriLog
Made in Germany - Note Cursor variant
Front Scale:
T1. T2, A [ B, BI, CI, C ] D, P, S , ST
Back Scale:
LL1, LL2, LL3, DF [ CF, CIF, CI, C ] D, L, K
Multiple hairlines: PS, KW
Original Owner/Location: Wember/Germany
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Aristo 909 MultiTrig dc563 (1956)
ISRM 18.04.06.18
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Aristo 909 MultiTrig dc563 (1956)
Made in Germany
Front Scale:
P, A [ B, T Cot, ST, S Cos ] D, DI
Back Scale:
K, DF [ CF, CIF, CI, C ] D, L
Multiple hairlines: W, HP
Gift of the Leroy Hausler Collection
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Aristo (Charvoz) 909 MultiTrig dc565 (1956)
ISRM 21.04.07.02
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Aristo (Charvoz) 909 MultiTrig dc565 (1956)
Made in Germany
Front Scale:
P, A [ B, T Cot, ST, S Cos ] D, DI
Back Scale:
K, DF [ CF, CIF, CI, C ] D, L
Multiple hairlines: W, HP
Gift Of Katherine Champe Jones of of Vienna, Virginia.
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Aristo 915E Elektro
ISRM 09.01.12.85
Aristo 1364 Insert (Comes with 915E Elektro)
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Aristo 915E Elektro - dc 2LA02 (1970)
Made in Germany - Note transparent linear scales
Front Scale: extended
28cm // K, A [ B, BI, CI, C ] D, LL3, LL2 \\ 9-0in,0-9in
Back Scale: [ S, ST, L, T]
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 0929 Multi-Rietz 1967
ISRM 21.12.01.01
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Aristo 0929 Multi-Rietz dcHFL5 1967
Made in Germany - 20 scales - Plastic Cursor assembly.
Front Scale(extended):
P, A [ B, T Cot, ST Arc, S Cos, C ] D, DI
Back Scale:
K, DF [ CF, CIF, CI, C ] D, L
Multiple hairlines: PS, KW
Original owner (Label insert): Kuchenbuch August Hildesheim, Leunissh.26.
Gifted by Andreas Poschinger of Munich, Germany.
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Aristo Nr.939/n=10 Concrete Beam "Stahlbeton"
ISRM 14.02.11.01.X
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Aristo Nr.939/n=10 Concrete Beam "Stahlbeton" Slide Rule
Made in Germany by Aristo c1970 - Note nomograph on cursor
Front Scales: M [ b, k, r, sigmab ] h
Back Scales: sigma'e, M [ b, sigmab, r ] Z, x, h
Complex cursor. Three versions were available, based on country "Codes of Practice":
- L939/15 range of tension in the steel from 1200 to 2800 kg/cm2. German code DIN 1045
- L939/10 range of tension in the steel from 880 to 2200 kg/cm2. Spanish Instructions and used in France and Brazil.
- L939/8 range of tension in the steel from 880 to 2000 kg/cm2
Acquired out of Brazil
Ron Manley (Uk) provides a very good Aristo 939 Summary of instructions .
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Aristo 0958 Aristo-GEOÄT 360°
ISRM 18.04.06.134.X
ISRM Aristo-GEOÄT Inserts: No 1364 and No. 1367
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Aristo 0958 GEOÄT 360° dc641 (1964)
Made in Germany - 24 scales
Front Scale:
∠ctg, ∠T, ∠arc, πx (DF) [ πx (CF), 1/πx CIF),
1/x (CI) x (C) ] x (D), P, ∠sin, ∠cos
Back Scale:
1-cos, 1-cos, x(A) [ x(B), 1/tan (a/2), sin cos, cos2 sin cos,
] x(D), lgx(L), x2(K)
Multiple hairlines: PS, KW
Gift from the family of Leroy G. Hausler. His collection is shown in other galleries
Label shows original owner: Ortis Karl, of Wimpassing, Austria
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Aristo 0958 Aristo-GEOÄT 400g
REF
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Aristo 0958 GEOÄT 400g c1956
Made in Germany - 24 scales
Front Scale:
ctg, T, arc, DF [CF, CIF,
CI, C] D, P, S, cos
Back Scale:
1-cos, 1-cos, A [ B, 1/tan (a/2), sin cos, cos2
] D, L, K
Multiple hairlines: PS, KW
Archive -Not in
Collection
 Manual - scan by Peter Lang
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Aristo 965 Shut-Commerz II (Commerce)
ISRM 09.01.12.86
ISRM Aristo 965 Shut-Commerz II Insert
|
Aristo 965 Shut-Commerz II (Commerce)
Made in Germany - date code G641 (1964)
Front Scale:
28cm // -%/+%, KZ [ T2, P2, P1, T1 ] Z, M, £, s/d
Back Scale:[ ZZ3, ZZ2, ZZ1, ZZ%m T1]
Donated by David Hecht, Alexandria, Virginia
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Dennert & Pape Aristo 966 Multilog
ISRM 22.03.01.44
|
Dennert & Pape Aristo 966 Multilog
Made in Germany - date code 503 (1950)
Front Scale:
K, DF [ CF, CIF, CI, C ] D, L
Back Scale: LL0, A [ B, S, T, C ] LL3, LL2, LL1
Gift Of Philip E. Stanley Collection
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Aristo 967U Darmstadt
ISRM 09.01.12.87
|
Aristo 967U Darmstadt
Made in Germany - date code 535 (1953)
Front Scale: extended
11inch // K, A [ B, BI, CI, C ] D, P, S Cos, T Cot
Back Scale: [ L, LL1, LL2, LL3]
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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S204 Aristo 967U Darmstadt
|
Aristo 967U Darmstadt
Made in Germany - date code G612 (1961)
Front Scale: extended
28cm // K, A [ B, BI, CI, C ] D, P, S Cos, T Cot
Back Scale: [ L, LL1, LL2, LL3] 11in
Multiple hairlines
Original Owner/Location: Kristin Bradbury/France
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Aristo 967U Darmstadt with clear back scale window
ISRM 09.01.12.88
|
Aristo 967U Darmstadt, Clear back window
Made in Germany - date code 2FX07 (1969)
Front Scale:
28cm (clear) // K, A [ B, BI, CI, C ] D, P, S Cos, T Cot \\ 11in
Back Scale: 28cm [ L, LL1, LL2, LL3]
Multiple hairlines
Donated by David Hecht, Alexandria, Virginia
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Aristo 967U Darmstadt with transparent linear scales
ISRM 22.10.13.04
|
Aristo 967U Darmstadt, with transparent linear scales
Made in Germany - no date code Aristo-Darmstadt on back. Made in Germany on slide.
Front Scale:
28cm (clear) // K, A [ B, BI, CI, C ] D, P, S Cos, T Cot \\ 11in
Back Scale: 28cm [ L, LL1, LL2, LL3]
Multiple hairlines
Gifted byLeslie Dormamen of Wheaten, Illinois.
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Aristo 0968 Studio - V1
S103 |
Aristo 0968 Studio (early)
Made in Germany - note: ends and cursor.
Front Scale; (extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
T Cot, ST ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Multiple hairlines: PS, KW
Original Owner/Location: Wember/Germany
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Aristo 0968 Studio - V2, 1964
ISRM 12.06.25.20
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Aristo 0968 Studio dc64115
Made in Germany - Note yellow highlight on slide and scales
Front Scale:
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
ST ST, T1, T2, DF [ CF, CIF, CI C ] D, P, S Cos
Multiple hairlines: PS, KW
|
Donated by Anonymous collector and daughter Stephanie.
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.
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Aristo 0968 Studio - V2B
ISRM 18.04.06.133
|
Aristo 0968 Studio
Note: Red skid pads on braces
Made in Germany
Front Scale; (extended)
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
T Cot, ST ST, DF [ CF, CIF, CI, C ] D, P, S Cos
Multiple hairlines: PS, KW
Gifted by the family of Leroy G. Hausler.
Leroy G. Hausler was a Pharmacist that collected slide rules. He was a member of the Oughtred Society from 2006 to 2016. Other specimens are also in the ISRM galleries.
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Aristo 0968 Studio - V3
ISRM 18.04.06.135
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Aristo 0968 Studio dc2LST6 (1973)
Made in Germany - Note yellow highlight on slide and scales
Front Scale:
LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back Scale:
ST ST, T1, T2, DF [ CF, CIF, CI C ] D, P, S Cos
Multiple hairlines: PS, KW
Gifted by the family of Leroy G. Hausler.
Leroy G. Hausler was a Pharmacist that collected slide rules. He was a member of the Oughtred Society from 2006 to 2016. Other specimens from his collection are shown in various ISRM galleries.
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Aristo 0969 Studiolog
ISRM 04.11.10.05 D8
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Aristo 0969 Studiolog
Made in Germany - 31 scales - Narrow Plastic and Metal Cursor
Front Scale(extended)
LL00, LL01, LL02, LL03, A [ B, BI, K, L, CI, C ] D, LL3, LL2, LL1, LL0
Back Scale:
ST ST, T1, T2, DF [ CF, CIF, S, CI, C ] D, DI, P, S Cos
Multiple hairlines: PS, KW
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Aristo 0969 Studiolog dc2LI5 (1972)
ISRM 18.04.06.03.X
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Aristo 0969 Studiolog dc2LI5 (1972)
Made in Germany - 31 scales - Note Wider All-Plastic Cursor
Front Scale(extended)
LL00, LL01, LL02, LL03, A [ B, BI, K, L, CI, C ] D, LL3, LL2, LL1, LL0
Back Scale:
ST ST, T1, T2, DF [ CF, CIF, S, CI, C ] D, DI, P, S Cos
Multiple hairlines: PS, KW
Gifted by the family of Leroy G. Hausler.
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Aristo 0970 MultiLog Charvoz (early)
ISRM 08.11.20.01
|
Aristo 0970 MultiLog Charvoz Date Code 593 (March 1959)
Made in Germany - note gold anodized metal ends and metal cursor
Front Scale:
LL00, K, A [ B, T, ST, S, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
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 Pickett 800-ES
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.
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Aristo 0970 MultiLog Charvoz (early)
ISRM 14.09.21.06
|
Aristo 0970 MultiLog Charvoz (early)
Made in Germany - note silver anodized metal ends and metal cursor
Front Scale:
LL00, K, A [ B, T, ST, S, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Original Owner/Location: NAAB, written inside flap of sleeve.
Gift of Edward Wright, Odenton, Maryland.
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S065 Aristo 0970 MultiLog (Modern)
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Aristo 0970 MultiLog Charvoz (Modern)
Made in Germany - note plastic ends and plastic cursor
Front Scale:
LL00, K, A [ B, T, ST, S, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
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Aristo 0970 MultiLog (1957)
ISRM 15.05.12.24
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Aristo 0970 MultiLog dc577 (1957)
Made in Germany - note plastic ends and plastic and metal cursor
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Gift of Colin Barnes, UK
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Aristo (Charvoz) 0970 MultiLog (1963)
ISRM 22.05.06.05
Theodore ("Ted") A. Ulrich was born in Spokane, Washington and moved with his family to Ft. Collins six months later.
Attending schools in both Ft. Collins and Boulder, Ted graduated with the Boulder HS class of 1961. (Continued on right)
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Aristo 0970 MultiLog DateCode 595 (1959)
Made in Germany - note plastic ends and plastic cursor
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Original owner: Theodore A. Ulrich. Purchased new at USMMA in 1961
Gift Of Nancy Ulrich. Belonged To Ted Ulrich
(Cont'd) Ted received an appointment to the United States Merchant Marine Academy, Kings Point, NY. He graduated from Kings Point in August of
1965.:Ted served his active duty in the Port of New York.He then enrolled in Fordham
University (NY) School of Law and graduated in the class of 1970.Ted also served as Law Clerk to the Hon. John M. Canella of the Southern District of New York.
Ted joined the law firm of Cadwalader, Wickersham and Taft as an Admiralty and International lawyer, rising to partner,
and remained with that firm for twenty-four years. Ted accepted a position with
Popham Haik, a Denver office of the Minneapolis-based firm. Ted's many hobbies included woodworking and ship modeling.
He crafted several ship models, called "scratch built". The garnered him an award for that model.
Ted met Nancy Allison at a Kings Point social event in late February 1964 and were married on May 30, 1966 at Roslyn, New York.
Look for other slide rules from the Ted Urlich collection in the ISRM galleries.
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Aristo 0970 MultiLog (1963)
ISRM 12.03.21.03
Aristo 0970 MultiLog Conversion Factors Insert
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Aristo 0970 MultiLog DateCode 631 (Jan 1963)
Made in Germany - note plastic ends and plastic cursor
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Donated by Henry (Hank) Benoit, Kingston, Ontario, Canada
Henry Benoit (BSEE 1968, MSc 1970) had a hands-on biomedical engineering career in OB/GYN research at University of Toronto and
clinical engineering at University of Ottawa Heart Institute. His graduate work focussed on electroanesthesia and electrosleep.
During the 70s he applied an early Fairchild charge-coupled device to observation of internal organs and designed portable
instrumentation based on the RCA COSMAC computer chip set and the FORTH language. Later he contributed to excimer laser
applications in cardiac ablation surgery and integration of electronic technologies into clinical settings.This slide rule was
obtained before starting college.
See Hank's other personal slide rule, the Faber-Castell 989 Complex Slide Rule, in the Faber-Castell Gallery.
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Aristo 0970 MultiLog (1952) Charvoz
ISRM 18.04.06.125
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Aristo 0970 MultiLog Charvoz dc652 (Feb 1965)
Made in Germany - note plastic ends and plastic cursor
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Donated by Leroy Hausler Collection
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Aristo 0970 MultiLog (1969)
ISRM 13.07.03.22.X
Warranty and Registration (no.140575), Sleeve showing Aristo-Charvoz, 1954 Instructions (6.94MB PDF)
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Aristo 0970 MultiLog dc2FX17(1969)
Made in Germany - note plastic ends and plastic cursor
Front Scale:
LL00, K, A [ B, T Cot, ST, S Cos, C ] D, DI, LL0
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: HP, KW
Donated by Daniel Swerdlow, Bethesda, Maryland
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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.
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Box end, disassembly and care inserts,
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Aristo 0971 Hyperbolog (1969)
ISRM 14.02.11.02.X
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Aristo 0971 Hyperbolog dc2FX4
Made in Germany - note plastic ends and plastic cursor, and skid pads on both sides.
Front Scale:
Th, K, A [ B, T Cot, ST, S Cos, C ] D, DI, Sh2, Sh1
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: PS, KW
Acquired out of Brazil
Aristo 1364 Insert (comes with Aristo 0971)
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Aristo 0971 Hyperbolog
REF S106
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Aristo 0971 Hyperbolog
Made in Germany - note plastic ends and plastic cursor and skid pads on one side.
Front Scale:
Th, K, A [ B, T Cot, ST, S Cos, C ] D, DI, Sh2, Sh1
Back Scale:
LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1
Multiple hairlines: PS, KW
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Aristo 0972 Hyperlog (Hyperbolic) Slide Rule
ISRM 24.07.04.25.X
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Aristo 0972 Hyperlog (Hyperbolic) Slide Rule
Made in Germany - note plastic ends and plastic cursor. This is one of the widest of all contemporary slide rules 2.6in[67mm]
Front Scale:
H2, Sh2, Th, K, A [ B, T, ST, S, P, C ] D, DI, Ch, Sh1, H1
Back Scale:
LL00. LL01, LL02, LL03, DF [ CF, CIF, L, CI, C ] D, LL3, LL2, LL1, LL0
Multiple hairlines: PS, KW
Donated by the Tom Dilitush Collection
Aristo 1364 Insert and support brackets (comes with Aristo 0972)
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Aristo 1083 (Henschel Co.) 4 Inch (1952)
ISRM 20.04.01.150
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Aristo 1083 (Henschel Co.) 4 Inch dc523 (Mar 1952)
Made in Germany by D&P for John Henschel Company, New York.
Front Scale:
4in // A [ B, CI, C ] D, K
Back Scale: [ sin, lg, tg ]
Well Promo: Henschel Co.
Gifted by Philip Stanley Collection
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REF Aristo 10065 System Grüter - Peru
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Aristo 10065 System Grüter - Peru
Made in Germany by Aristo ©1952 by Dennert & Pape, Hamburg
Note: this slide rule came with three extra slides to increase the number of possible functions
Front Scale:
K, A [ B, Multi +1 0,1,2,3,4 DIVIS +1 ] D, L (compressed 1/2 scale)
Back Scale: T, ST, DF [ Multi +1 5,6,7,8,9 DIVIS +1, C ] D, ST
Slide I - Front Scale: B LL01, LL02, LL03, C
Slide I - Back Scale: CF LL3, LL2, LL1, C
Slide II - Front Scale: B, Sin Cos, Sin Cos, C
Slide II - Back Scale: CF, T, Red.hoz, Red.hoz, C
Slide III - Front Scale: tg alpha/2: +1,0,-1, pi-alpha/180 0,+1
Slide III - Back Scale: Externa: 0,-1,-2,-3, C
Scan Provided by photocalcul.com
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REF Aristo 10096 System Prof.Dr. J. Th. Peters |
Aristo 10096 System Prof.Dr. J. Th. Peters
Made in Germany by Aristo
Front Scale:
A (Selected Gauge Marks), A [ B, C ] D, L (compressed 1/2 scale)
Back: Unknown
Scan Provided by Sphere Research
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HSRC Aristo 10125 Galvanotechnacher Rechenstab (early) |
Aristo 10125 Galvanotechnacher Rechenstab (early)
Made in Germany for Langbein-Fahnhauser Werke A.G.- calculates magnetic factors of metals
Front Scale:
14cm // (Metal Type) a [ b, f, c ] d \\ 5.5in
Back Slide; [ e ]
Back: Instructions and table
Scan Provided by Herman's Slide Rule Catalogue
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Aristo 10125 Galvanotechnacher Rechenstab
REF |
Aristo 10125 Galvanotechnacher Rechenstab
Made in Germany for Langbein-Fahnhauser Werke A.G. - calculates magnetic factors of metals
Front Scale:
14cm // (Metal Type) a [ b, f, c ] d \\ 5.5in
Back Scale:
h. m [Óe, Ób ] Fe, 150+Ø, 100+Ø, 75+Ø, 50+Ø, Vert=1/5 Fe, Q, R
Scan Provided by Sphere Research
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Aristo 10155 Soil Swell Pressure Slide Rule
ISRM 20.04.01.356
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Aristo 10155 Soil Swell Pressure Slide Rule
Made in Germany by D&P for Rainhart Company, Austin, Texas.
Patent Pending by Chester McDowell.
Front Scale:
Layer Thickness ft. (6 scales), C, D [ B Vertical Rise, Percent Volumetric Swell ] A1, A2, A3
Back: Instructions on its use.
Case Promo: Compliments of Austin White Lime Co.; P.O.Box 53, Austin, Texas.
Gifted by Philip Stanley Collection
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Aristo 10175 Electronic CIE Logo
ISRM 18.04.06.139
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Aristo 10175 Electronic CIE Logo - 1969
Made in Germany - For Cleveland Institute of Electronics
Note: Pink background on CIE side.
Front Scale:
LC, 2p,
A [B, CI, C] D, S, T, L
Back Side
Reactance formula, Ohm's law, Reactance and Resonance Problems, etc
Gift of the Leroy G. Hausler Family.
Leroy G. Hausler was a Pharmacist that collected slide rules. He was a member of the Oughtred Society from 2006 to 2016. Other specimens are also in the ISRM galleries.
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Aristo 10175 Electronic CIE Logo
REF |
Aristo 10175 Electronic CIE Logo - 1969
Made in Germany - For Cleveland Institute of Electronics
Note: Yellow background on CIE side.
Front Scale:
LC, 2p,
A [B, CI, C] D, S, T, L
Back Side
Reactance formula, Ohm's law, Reactance and Resonance Problems, etc
Scan Donated by Olivier Cassou, France
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Aristo-Maverick (Charvoz) 20-0195
18.04.06.138
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Aristo-Maverick (Charvoz) 20-0195 - 1969
Made in Germany.
Front Scale:
DF [CF, CIF, CI, C] D, A, K
Back Side
S, ST, L, T
Gift of the Leroy G. Hausler Family.
Leroy G. Hausler was a Pharmacist that collected slide rules. He was a member of the Oughtred Society from 2006 to 2016. Other specimens are also in the ISRM galleries.
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Aristo 40128 Universal Pocket Slide Rule (Wire)
ISRM 13.04.03.01.X
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Aristo 40128 Universal Pocket Slide Rule (Wire) - ©1965 Dennert & Pape
Universal Rechenschieber (Draht), Règle À Calculer Universal (Fil), Regla De Universal (Alambre)
Made in Germany by Dennert & Pape, Aristo-Werke-Hamburg. System: Kohlhase-Heuel
This slide rule is a hybrid of a slide rule and a slide chart, designed
for technicians inthe Wire Industry to determine the necessary factors
for drawing operations on Iron, Steel and metal wire, Bar and Tube forming, etc, It incorporates many of the standard slide rule scales as well as tensile strength tables. Instructions on slide rule in German and English.
Front Scale:
K E (m/s), E(ft/min),
A [B, G, H, H, CI, C] D, L
Back Side
F(Tensile Table), G (Total Area Reduction), F1(Tensile Strength Table)
 Instructions (11.8MB PDF)
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Aristo 60168 Steel Shape Weight and volume Calculator
REF |
Aristo 60168 Steel Shape Weight and volume Calculator
Made in Germany by Aristo
Front Scale:
Area (F (x 100 = mm2), Weight (Kg), Length (mm or M)
Back Scale:
Base (B), Height (S), Length (L)
Scan Provided by Sphere Research
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Aristo 80125 Gherzi Textile (Pat.Pending)
ISRM 20.04.01.364
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Aristo 80125 Gherzi Textile (Pat.Pending)
Made in Germany for Gherzi Textile Organization, Zürich, Switzerland.
Note" Stock several warped, caused by heat or label?
Front Scale (Extended):
13cm // K, A [ B, CI, C ] D, L
Back Scale: 5in [ S, ST, T ]
Back: Tables of Hanks, Yards, grains, etc for Textiles
Gift Of Philip Stanley Collection
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REF Aristo 80161 Optometrist |
Aristo 80161 Optometrist
Made in Germany by Aristo
Front Scale:
German: Sehbereich [ Akkommodieren ] Nahzusatz
English: Visual Field [Accommodation] Near Addition
Scan Provided by Sphere Research
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D&P (Aristo) German GWR Artillery Ranging 15cm (c1944)
ISRM 22.10.15.01.X
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D&P (Aristo) German GWR Artillery Ranging 15cm Slide Rule (c1944)
Made in Germany out of Astrolon Plastic.
Note: "GWR" reveals that this was manufactured by Dennert & Pape for the German Wehrmacht.
Front Scales:
EM, Gerätekonst, Ablage in Winkelsekunden [ Ablage in m, Wehre e in hm ] Gerätekonstante
Reverse: (Instructions for use) Rechnungsbeispiele, 1.Messen nach Entfernung. 2.Messen nach Höhe.
Gift of Dave Zoumaras of San Diego, California. Belonged to father-in-law.
The above slide ruleis one used for correcting measurements made using rangefinders.
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Explanation of Aristo Manufacturing Date Codes
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The following explanations are courtesy of Greg Scott adapted
from Greg's Slide Rules
Post WWII Aristo rules all have a manufacturing code on one edge of the rule.
This is usually a combination of alpha and numeric codes which defines the
rule's factory of manufacture, year of manufacture and batch number.
Code Details
There are three code segments, The factory, year of manufacture and lot number.
The lot number is self-explanatory.
Examples of date codes:
2FX16 - Manufactured 1969 in lot 16 in Hamburg
4FE02 - Manufactured 1968 in lot 02 in Wörgl
3LS06 - Manufactured 1973 in lot 06 in Geretsried
WLS32 - Manufactured 1973 in lot 32 in Wörgl
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Factory codes:
1st character, either alpha or numeric.
| Letter Code |
Number Code |
Factory |
| H |
2 |
Hamburg |
| G |
3 |
Geretsried |
| W |
4 |
Wörgl |
Year Code: 2nd & 3rd Character
Up to about 1959 dates were included in the manufacturing code as a
number after that the alpha codes were used.
| A |
R |
I |
S |
T |
O |
F |
L |
E |
X |
| 0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
Lot Number: 4th & 5th Character
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New In Box
Manual - scan by Peter Lang
