ISRM 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
P128 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
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)
Made in Japan by Hemmi - Note: Post logo
Front Scale
4in // A [ B, CI, C ] D
Back Scale: [S, L, T ]
Back Blank.
P088 Post 1442 Duplex
Made in USA - Same as Charvoz-Roos SR-108
Front Scale
K, A [ B, S, T, C ] D, DI
Back Scale
Fraction-Decimal[ L, C2, C1 ] D1, D2, D
Manual 7.56Mb
P057 Post 1444-P
Made in USA by Charles Bruning, Body same as Bruning 2401
Front Scale
12.5cm // A [ B, CI, C ] D, K \\ 5in
Back Scale: [S, L, T ]
Back Blank.
P122 Post 1444
Made in Japan
Front Scale
5 inch // A [ B, CI, C ] D
Back Scale
[ S, L, T ]
P170 Post 1444K
Made in Japan - date code KJ
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
P121 Post 1444K
Made in Japan - date code IB
Front Scale
5 inch // A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
P231 Post 1445 5 in
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.
S228 Post 1445 8 in
Has same resolution as a 10 inch scale.
Made in Japan by Hemmi
Front Scale
K, DF [ CF, CI, C ] D, A
Back Scale
[ TI, L, SI ]
Back: Post Logo
S497 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
S502 Post 1446-D Student
Missing Cursor, same as Lawrence 250-BT and Dietzgen 1767P
Made in USA by lawrence Engineering
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
S017 Post 1446
Two versions shown. One has plastic separator (look at backside) and the other metal
Made in Occupied Japan
Front Scale
A [ B, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
S096 Post 1446
Made in Occupied Japan - Bamboo
Front Scale
A [ B, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
P174 Post 4" Pocket 1447
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
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
Made in Occupied Japan (no Post Logo)
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
S313 Post 1447
Made in Japan
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. |
S021 Post 1447
Made in Occupied Japan
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. It is now in the archives of the Computer History Museum in Mountain view, CA. 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. |
S268 Post 1447
Made in Japan by Sun Hemmi - Date Code HJ
Front Scale
A [ B, CI, C ] D, K
Back Scale
[ S, L, T ]
Back: Conversion Chart
REF 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 Currently in Collection
S334 Post 1449 Mannhiem
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
Made in Japan by Hemmi
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
Made in Japan by Hemmi - 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
S443 Frederick Post 1452 - US Patent 1/81722
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
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
Made in Occupied Japan
Front Scale
10 // A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ]
Back: Conversion Chart
S023 Post 1452-D
Made in U.S.A
Front Scale
10in // A [ B, CI, C ] D, K \\ 25cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart
S023 Post 1452W
Made in Occupied Japan
Front Scale
10in // A [ B, CI, C ] D, K || 25cm
Back Scale
[ S, L, T ]
Back: Conversion/Geometry Chart
S297 Post 1452P
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
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
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
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
ISRM Post 1460 Versalog - Marked Hemmi 258
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
S078 Post 1460 Versalog
Made in Japan by Hemmi - Date code DC - March 1953
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: D.L. Ross, M.R.H.
|
Retail Box label - Price in 1953 = $26.25,
DAU Bookstore (Defense Acquisition University, part of the Department of
Defense) |
S078 Post 1460C Versalog
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
S079 Post 1460 Versalog
Made in Japan by Hemmi - Date code RE - June 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
S080 Post 1460 Versalog II
Made in Japan by Hemmi - Date code UE - May 1970
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
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.
S215 Post 1460 Versalog II - USAFA Issued
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.
S081 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 origiganal Versalog does not.
P087 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 origiganal Versalog does not.
ISRM Post 1461 Electronic
Made in Japan by Hemmi for Frederick Post Co.- 1936
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
ISRM 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
Donated by Robert C. Eaton, Boulder, Colorado
S074 Post 1462
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
S211 Post 1462
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
S073 Post 1462
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
REF Post 1462H PostTrig
Made in Occupied Japan by Hemmi
Front Scale
LL0, LL00, A [ B, K, L, C ] LL3, LL2, LL1
Back Scale
T, DF [ CF, CIF, CI, C ] D, S, T
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.
REF-C04 Post 1464 Binary
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
