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Concise Slide Rules and rebranded variants This gallery is focused on the varieties of Concise circular slide rules and the many variants of promotional specimens. Concise is manufactured by K.K. Konsaisu of Tokyo, Japan, and is the only manufacturer still producing and marketing new slide rules that have the classic scales. The advantage of circular slide rules, is that the dimensions can be small enough to fit in your shirt pocket, yet have the scale resolution of a standard linear slide rule. Construction is simple as the only only fastener is the single screw or rivet at the center of the disk. Sama and Etani out of Groton, Massachusettes, (© Etani Shoji Kaisha, ltd, Tokyo) designed a series of tables that are inserts in a rectangular stock. There is also one model with an addiator on the reverse side. The current website in Japan for buying brand new slide rules Concise Co. Ltd. Note that Scientific Instruments rebranded Concise circular slide rules are moved into the SIC gallery, to minimize maintenance errors.
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KEEP ISRM FREE! Donations are tax deductable |
Concise No.32 Key Chain Slide Rule w/Calender ISRM 14.07.02.06 |
Concise No.32 Key Chain Slide Rule w/ Perpetual Calender Made in Japan. 6cm Dia Front Scale: D (C), Perpetual Calender Back: Blank Gift Of Ed Millis, Texas. |
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C06 Lietz 3625-20 8.4cm REF C06 |
Lietz 3625-20 8.4cm Dia Made in Japan by Concise Front Scale: D ( C, CI, A, K ) Back: equivalents |
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Lietz 3626-25 Stadia Computer 10cm dia 22.07.06.89 |
Lietz 3626-25 10cm dia Made in Japan by Concise rebranded for Lietz company, U.S.A. Front Scale: D, SIN, COS,COS2 Back Scale:: D, ( C, S Cos, T1 Cot1, T2 Cot2, ST ST, L ) Gift Of Cindy Tate of Bozeman Montana. Victor B. Tate Collection. Victor Boylan Tate II (1932? - 2021), was a Montana Rancher/Engineer/Pilot. |
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SIC 120 (Version 2) REF |
SIC 120 (Version 2) - 1962 Made in Japan by Concise_for Scientific Instruments Co. - 10.8cm Dia Front Scale: K, A, D ( C, CI, E1(spiral) ) Back Scale: L, DI, D T, S, T, S, T, TS Archive - Ted White Collection |
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SIC 250 REF C11 |
SIC 250 - Patent 440028 Made in Japan by Concise for Scientific Instruments Co. 1962 - 8cm Dia Front Scale: K, A, D ( C, CI, L ) Back Scale: D, T, S, T<45, S<45, T&S<5.8 |
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SIC 300B Concise (SIC 250D Prototype) ISRM 21.08.07.18 |
SIC 300B Concise (SIC 250D Prototype) Made in Japan by Concise for SIC - 1961 Front Scale: K, A, D ( C, CI, B, L ) Back Scale: LL3, LL2, D ( C, S Cos, T1 Cot1, T2 Cot2, ST Stock Dimensions (mm): 111 Dia x 3 Gift Of William Lisowski. |
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IC 1610-D REF |
SIC 1610-D Made in Japan for Scientific Instruments Co., 1963 - 12.8cm Dia Front Scale: LL3, LL2, LL1, LL0, K, A, D ( C, CI, B, EI(spiral) ) Back Scale: LL03, LL02, LL01, LL00, P, L, DI, D ( C, T, S, T, S, T, TS ) Archive - Ted White Collection |
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Star Sliding Disk 130 REF |
Star Sliding Disk 130 - 10.8cm dia Made in Japan Front Scale: K, A, D, ( C, CI, EI (spiral)) Back Scale (Trig scales in Degrees-Minutes-Seconds) L, DI, D, T, S, T, S, T, TS Archive - Ted White Collection |
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General Electric - Defense Electronics Division ISRM 09.10.21.10 |
General Electric - Defense Electronics Division Made in USA by Concise - 2-1/2" x 4" Front Scale: D ( C) Side Edges: CM and inches Scale: Donated by Marten C. Jensen |
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Concise Gusteveco Circular Slide Rule With Tables Philippine Ships Draught Stowage ISRM 26.06.10.13 |
Concise Gusteveco Circular Slide Rule With Tables Philippine Ships Draught Stowage Made in Japan by Concise for Gusteveco Guam, Marianas Islands, for ships out of the Phillipines.. Front Scale: D ( C, CI, A, K ) Inserts: Cargo Storage, Cubic Volume Square Area, Temperature, Weight, Ship's Draught, Length. Promo: Luzon Stevedoring Co. of Guam Inc. Gift of Bob Dehn Collection. |
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Concise 26A Circular Slide Rule With Tables ISRM 21.03.26.01 |
Concise 26A Circular Slide Rule With Weights and Measures Tables Made in Japan by Concise. Pre OEM model with japanese and English labels. Front Scale: D ( C, CI, A, K ) Inserts: Side 1 - Square and Cubic. Side 2 - Length and Weight Back: Japan Steel Works Promotion |
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Concise Stadia Circular - ISRG Hermann van Herwijnen Memorial 2004 ISRM 22.10.24.01 (replaced 21.08.12.02) Tribute & Instructions (170kb PDF) |
Concise Stadia Circular - ISRG Hermann van Herwijnen Memorial 2004 Made in Japan by Concise - 10cm diameter Special production run for The International Slide Rule Group (ISRG) Front Scale: D, SIN, COS,COS2 Back: D, C, S, T, ST, L Gift of Frank W. Cole of Hutchinson, Kansas. Herman van Herwijnen (1929-2004) was a Dutch slide rule collector and author of the Slide Rule Catalogue (see Herman's Catalog at ISRM) and co-author of Calculating on Slide Rule and Disc with IJzebrand Schuitema. Married to Diny van Herwijnen. He graduated with Mechanical Engineering degree from Technical University Delft in 1954. Spent two years in the Dutch Air Force followed by 13 years woking in Venezuala for Dutch Royal Shell. Herman had his own firm, Infro Software, and lectured at Shell and Technical University Delft up until his death. He was a member of the Dutch Circle of Slide Rule Collectors. Herman last attended the IM 2003 Swap Meet. Oughtred Society Award 2003. |
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Concise 28 vs. 28N Cursors |
Concise No.28 vs No. 28N Circular slide rules The 8.5cm diameter No. 28 has a wrap-around double-sded cursor which served no use in carrying calculations to the other side. The 28N has a cost-reduced single-sided cursor that has a slight lip on the end that rides in a grooved track in the face near the outer edge. This keeps the user from catching accidently. The No.28 has a wrap-around double-sded cursor which served no use in calculations. |
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Concise 28 Motorola Semiconductors ISRM 09.10.21.11 |
Concise 28 Motorola Semiconductors Made in Japan by Concise - Pat. No. 381371 Front Scale: D ( C, CI, A, K ) Back: Conversions Donated by Marten C. Jensen |
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Concise 28 ISRM 14.07.02.02 |
Concise 28 Made in Japan by Concise - 8.4cm Dia Front Scale: D ( C, CI, A, K ) Back: Conversions Gift Of Ed Mills |
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Concise 28 (Takeda branded) ISRM 23.02.01.03 |
Concise 28 (Takeda branded) Made in Japan by Concise - 8.4cm Dia Front Scale: D ( C, CI, A, K ) Back: Conversions Belonged to Dr. A. Edwin Harper (1919-2001) Gift Of Stephen A. Harper, son of Dr. Harper. |
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Alpha 4028 (Concise 28) REF C27 |
Alpha 4028 (Concise 28) Made in Japan by Concise - 8.4cm Dia Front Scale: D ( C, CI, A, K ) Adv: Westeel-Rosco and Takeda Front 387Kb Back 420Kb |
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Otis Engineering Gas REF C08 |
Otis Engineering Gas Calculator Made in Japan by Concise - 8.4cm Dia Front Scale: (Standard No.28) D ( C, CI, A, K ) Back: Gas and Fluid weights |
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Concise 28N DIGITAL PDP-11 Promo ISRM 22.07.09.04 |
Concise 28N DIGITAL PDP-11 Promo Made in Japan by Concise - Pat. No. 381371 Note: The 28N has a cost reduced Single-sided cursor. The No.28 has a wrap-around double-sded cursor which served no use in calculations. Front Scale: D ( C, CI, A, K ) Back: Conversions Donated by John A. Rolando of Estero, Florida |
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Concise 28N REF |
Concise 28N Made in Japan by Concise - 8.4cm Dia Front Scale: D ( C, CI, A, K ) Back: MKS/CGS conversions for Velocity, Pressure, Flow Rate Length, Area, Weight, Volume, Power Energy & Heat, Temperature Conversion, Density Archive - Art Kautz Collection Manual 1.67Mb |
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Concise 28N ISRM 13.01.09.01
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Concise 28N Made in Japan by Concise - 8.4cm Dia Front Scale: D ( C, CI, A, K ) Back: Equivalents, alternative artwork than the previous 28N, mostly linear units. Sleeve: SRL - System Research Laboratories, Inc. Dayton, Ohio Donated by Michael P. Maloney Michael P. Maloney finished pre-engineering at Niagara University in 1965 and graduated as an Electrical Engineer in 1968 from the University of Detroit. He also attended George Washington University and received a Master Degree in Engineering Management in 1978. After graduating from the University of Detroit, he joined the Department of Defense (DoD) and retired as a Technical Director in 1997. While working for the DoD, Mr. Maloney had three tours in Europe totaling 13 years. Mr. Maloney used the ten different types of slide rules or slide charts in the design, development, installation and maintenance of communication and radar systems. These have been donated to ISRM. Mike writes: "Of particular interest to me is the shirt pocket SRL circular slide rule and my white plastic 'nerd pack' (shirt pocket protector). These two items traveled with me on all my TDYs (business trip) while stationed in Europe during the 'Cold War'." Upon retiring from the DoD Mr. Maloney worked for Raytheon, Applied Signal Technology, Conquest, Boeing and Hayden Software Consulting. Mr. Maloney has five patents and enjoys wood working, traveling, reading and developing algorithms for solving cryptograms. |
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Concise 46 Commercial REF |
Concise 46 Commercial Made in Japan by Concise - 11.2cm Dia Front Scale: D ( C, CI, P1%, P2% ) Back: Equivalents. Archive photo - Bob Adams Collection, Australia |
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Concise 270 - Lafayette (F-382) ISRM23.02.01.02 |
Concise 270 - Lafayette (F-382) Made in Japan by Concise - 11.2cm Dia Front Scale: L, D ( C, CI, A, K ) Back Scale: DI, D ( S, T1, T2, ST ) Original owner: Dr.A. Edwin Harper. Gift of son, Stephen A. Harper. |
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Concise 270 - Lafayette F-382 V2 REF C32 |
Concise 270 - Lafayette F-382 V2 Made in Japan by Concise - 11.2cm Dia. Labeled with Lafayette Part number. Front Scale: L, D ( C, CI, A, K ) Back Scale: DI, D ( S, T1, T2, ST ) |
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Lafayette 99-7127 (Concise 270) ISRM 21.08.07.17 |
Lafayette 99-7127 (Concise 270) Made in Japan by Concise - 10.2cm Dia Front Scale: L, D ( C, CI, A, K ) Back Scale: DI, D ( S, T1, T2, ST ) |
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Concise 270N REF C29 |
Concise 270N Made in Japan by Concise - 11.2cm Dia Front Scale: A, D ( C, CI, B, K, L ) Back Scale: DI, D ( S Cos, T1 Cot1, T2 Cot2, ST ) |
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Concise 271 ISRM 13.06.28.01 |
Concise 271 Made in Japan by Concise - 11.2cm Dia Front Scale: L, D ( C, CI, A, K ) Back Scale: DI, D ( S Cos, T1 Cot1, T2 Cot2, ST ) Gift Of Susan Jackson, Boulder, Colorado, daughter of Jim Rodgers |
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Concise 300 Log Log 22.07.06.27 |
Concise 300 Log Log Made in Japan by Concise - 11.2cm Dia Front Scale: K, A, D ( C, CI, B, L ) Back Scale: LL3, LL2, D ( C, S Cos, T1 Cot1, T2 Cot2, ST ) Gift Of Cindy Tate of Bozeman, Montana. Victor B. Tate III Collection Victor Boylan Tate II (1932? - 2021), was a Montana Rancher/Engineer/Pilot. |
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Concise 300 Log Log (Alvin CS206) 22.05.06.07 |
Concise 300 Log Log (Alvin CS206) Made in Japan by Concise - 11.2cm Dia (also shown in Ricoh#Alvin gallery) Front Scale: K, A, D ( C, CI, B, L ) Back Scale: LL3, LL2, D ( C, S Cos, T1 Cot1, T2 Cot2, ST ) Gift Of Nancy Ulrich, of Denver, Colorado. Ted Ulrich Collection 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. 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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Concise 320 with Calendar ISRM 13.00.00.86 |
Concise 320 with Calendar (Variation) Made in Japan by Concise - 9.7cm Dia Front Scale: D ( C, CI, A, K ) Back Scale: Unit Conversions ( Calender - shows years 1960 through 1981) Manual Stamp: Concise - Atlanta Company, 1840 Glen View Drive, Atlanta, Georgia 30331, Tel: 344-0362 |
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Concise 320 with Calendar ISRM 12.06.24.02 |
Concise 320 Made in Japan by Concise - 9.7cm Dia Front Scale: D ( C, CI, A, K ) Back Scale: Unit Conversions ( Calender - shows years 1968 through 1981) |
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Concise 320 with Calendar ISRM 16.06.02.09 |
Concise 320 with Calendar (Variation) Made in Japan by Concise - 9.7cm Dia Front Scale: D ( C, CI, A, K ) Back Scale: Unit Conversions ( Calender - shows years 1968 through 1981) Gift of the Bob Schwartz Collection |
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Concise 380 Radio Computer REF |
Concise 380 Radio Computer Made in Japan by Concise - Diameter unknown Front Scale: L, db, XΩ, XLΩ ( C, F ) Back Scale: C, FC/S, XCΩ( L, F, λ, F ) Archive - Found on internet |
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Concise 380 Radio Computer ISRG Edition REF |
Concise 380 Radio Computer ISRG Edition Made in Japan by Concise - Diameter unknown Front Scale: L, db, XΩ, XLΩ ( C, F ) Back Scale: C, FC/S, XCΩ( L, F, λ, F ) Archive - Ebay photo. Originally in the Bob Otnes Collection |
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Concise Type-E Weights and Measures Conversion Tables Data Computer ISRM 17.10.10.03 3.8MB PDF |
Concise Type-E Weights and Measures Conversion Tables Data Computer Made in Japan by Concise Front Scale: 4-3/8in || D ( C, CI, A, K) || 11cm Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Original Owner/Location: Brian C. Cunningham, Australia Donated by Andrew (son) and Barbara (wife) Cunningham, Willagee, W.A., Australia.
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Concise Master Builders Type-E Data Computer REF C18 |
Concise Master Builders Type-E Data Computer Made in Japan by Concise Front Scale: 4-3/8in || D ( C, CI, A, K) || 11cm Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. |
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Sama & Etani/Concise EE-112 Reactance Slide Rule ISRM 22.02.11.01 |
Sama & Etani/Concise EE-112 Reactance Slide Rule - ©1966 Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2) || 10cm Back: Reactance Nomograph Insert:©1966 Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc., Resistor Color Codes, Copper Resistance Western Electric Promo on sleeve. Gifted by Robert Maurer of Exton, Pennsylvania. Instruction Manual 1.67MB |
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Sama & Etani/Concise EE-112 Reactance Slide Rule ISRM 09.11.16.01 |
Sama & Etani/Concise EE-112 Reactance Slide Rule - ©1966 Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2) || 10cm Back: Reactance Nomograph Insert:©1966 Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc., Resistor Color Codes, Copper Resistance Gifted by Jason A. McHenry, Tucson, Arizona Instruction Manual 1.67MB |
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Sama & Etani/Concise Model 200 Reactance Slide Rule ISRM 18.04.06.103 |
Sama & Etani/Concise Model 200 Reactance Slide Rule - ©1969 Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2, K) || 10cm Back: Reactance Nomograph Insert: EE ©1969 - Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc., Resistor Color Codes, Copper Resistance Advertisement: Philco Ford Donated by Leroy Hausler Collection Instruction Manual 1.67MB |
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Sama & Etani/Concise CTCS-552 Slide Rule (NUPRO) ISRM 13.08.27.03 |
Sama & Etani/Concise CTCS-552 Slide Rule - ©1966 For Chemical and Mechanical Engineers Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2) || 10cm Back: Table of Elements, atomic weights, Temperature conversions Insert front: Conversions for Length, Area, Weight, Volume. Insert back: Conversions for Flow rate, Pressure, Energy, Power, Gas Constants, Velocity. Company Promo: NUPRO Co. Valves & Filters, Cleveland, Ohio. Texas Valve and Fitting, Irving, Texas Gift of Arthur Anderson, Boulder, Colorado. Instruction Manual 4.64MB |
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Sama & Etani/Concise CTCS-552 Slide Rule (American Oil) ISRM 12.04.25.02 |
Sama & Etani/Concise CTCS-552 Slide Rule - Copyright 1966 Recommended for chemical and mechanical engineers and chemists Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, A, K) || 10cm Back: Table of the Elements Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Donated By Zdenka Novosad, Louisville, Colorado Zdenka used this slide rule during her career as a petroleum engineer. She attended high school in Czechoslovakia. She graduated from the University of Pennsylvania (1975) and later became a Petroleum Engineer for Shell Canada Limited and was a member of the Society of Petroleum Engineers. One of her many papers, published in 1996 by the journal 'SPE Reservoir Engineering', was Composition and Phase Changes in Testing and Producing Retrograde Gas Wells and she wrote Spectroscopic and Magnetic Resonance Studies of Aromatic Molecules published by the Graduate School of Arts and Sciences, University of Pennsylvania, 1975. |
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REF Sama & Etani CTCS-552 Conversion Tables |
Sama& Etani CTCS-552 Conversion Tables Made in Japan by Concise for Sama & Etani, Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, A, K) || 10cm Back: Periodic Table of the Elements, Temperature conversion Chart Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc.
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Sama & Etani 600P Overhead Projector Model ISRM 20.08.15.02 |
Sama & Etani (Concise) 600P Overhead Projector Clear Model Made in Japan by Concise Front Scale: 4in || D ( C, CI, L, A, S, T, K) || 10cm Actual size: 2X original = 6 inch x 8-1/2 inch Transparent Plastic stock and disks Gift Of Robert Carlisle of Nederland, Colorado |
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Sama & Etani 600-OP Overhead Projector Model ISRM 11.11.11.01 |
Sama & Etani (Concise) 600-OP Overhead Projector Colored Model Made in Japan by Concise Front Scale: 4in || D ( C, CI, L, A, S, T, K) || 10cm Actual size: 2X original = 6 inch x 8-1/2 inch Transparent Plastic stock and disks Donated by Carlee Heit in memory of her husband, Ray Heit Collection Raymond Anthony Heit (1957-2003) earned a Civil Engineering degree from the University of Cincinnati, and was a Registered Civil Engineer in Ohio and Texas and a Licensed Surveyor in Ohio. Raymond had a creative and productive career at Factory Mutual, Inc., Union Carbide, Inc, and Kellog-Brown & Root, Inc. He also collected slide rules and slide charts, which now reside in the ISRM archives. |
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Sama & Etani/Concise 600-CE Science Tables (NUPRO) ISRM 19.04.01.02 |
Sama & Etani/Concise 600-CE Science Tables (NUPRO)- ©1968 For Chemical and Mechanical Engineers Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2, K) || 10cm Back: Table of Elements, atomic weights, Temperature conversions Insert front: Conversions for Length, Area, Weight, Volume. Insert back: CE ©1968 - Conversions for Flow rate, Pressure, Energy, Power, Gas Constants, Velocity. Company Promo: NUPRO Co. Specialty Valves & Filters, Cleveland, Ohio. Thomas A. Read Co., Houston, Texas Instruction Manual 4.5MB |
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Sama & Etani/Concise 600-CE Science Tables (HARCO) ISRM 19.03.31.05 |
Sama & Etani/Concise 600-CE Science Tables (HARCO)- ©1968 For Chemical and Mechanical Engineers Made in Japan by Concise, Designed by Sama & Etani Groton, Massachusettes Front Scale: 4in || D ( C, CI, L, S Cos, T1 Cot1, T2 Cot2, K) || 10cm Back: Table of Elements, atomic weights, Temperature conversions Insert front: Conversions for Length, Area, Weight, Volume. Insert back: CE ©1968 - Conversions for Flow rate, Pressure, Energy, Power, Gas Constants, Velocity. Company Promo: HARCO Corp.Cathodic Protection Division, Fairfield, New Jersey Gifted by G. Jeffery Baumann Collection Instruction Manual 4.5MB |
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Sama & Etani (AVCO) Model 600-ST Science Tables ISRM 18.08.06.02 Promotional for AVCO - Everett Research Laboratory of Everett, Mass. As of 1967, it was wholly-owned subsidiary of Avco Corporation of Greenwich, Conn.It did basic and applied research in re-entry physics, space science and technology, optics and isotopes research, magnetohydrodynamic power generation, medical products, high power gas lasers, and laser metalworkers. This specimen belonged to Richard Levy PhD. |
Sama & Etani (AVCO) Model 600-ST Science Tables and Slide Rule Made in Japan by Concise ©1968, Designed by Sama & Etani, Groton, Massachussettes, 01450, USA. Front Scale: 4in || D ( C, CI, L, A, S, T, K) || 10cm Note: Scale labels stamped on cursor. Back: Periodic Table of the Elements, Temperature conversion Chart Insert - Concise CE ©1968:Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Gifted by wife Midge Levy and son Benjamin Levy, Seattle, Washinbgton.
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Sama & Etani (GE) Model 600-ST Science Tables ISRM 14.01.10.11 |
Sama & Etani (GE) Model 600-ST Science Tables Made in Japan by Concise ©1968, Designed by Sama & Etani, Groton, Massachussettes, 01450, USA. Front Scale: 4in || D ( C, CI, L, A, S, T, K) || 10cm Note: Scale labels stamped on cursor. Back: Periodic Table of the Elements, Temperature conversion Chart Insert - Concise CE ©1968:Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Promotional for General Electric. With Manual. Note: This specimen is slightly warped, but still functional. Donated by Albert Klumpp, Arlington Heights, Illinos. Instruction Manual 4.5MB |
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Sama & Etani Model 600-ST Science Tables ISRM 18.01.04.01 |
Sama & Etani Model 600-ST Science Tables Made in Japan by Concise, Designed by Sama & Etani,Copyright 1968 Front Scale: 4in || D ( C, CI, L, A, S Cos, T Cot, K) || 10cm Back: Periodic Table of the Elements, Temperature conversion Chart Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Note Wider cursor Note: Sleeve is Labeled "Physics is Phun". Gift of Dorinda J. Wong of Pleasanton, California.. Dorinda used this slide rule in undergrad chemistry, physics, math classes at UC Berkley in the early '70s. Instruction Manual 4.5MB |
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Sama & Etani Model 600-ST Science Tables ISRM 15.05.01.01 |
Sama & Etani Model 600-ST Science Tables Made in Japan by Concise, Designed by Sama & Etani,Copyright 1968 Front Scale: 4in || D ( C, CI, L, A, S Cos, T Cot, K) || 10cm Back: Periodic Table of the Elements, Temperature conversion Chart Insert ST: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Note Wider cursor Note: Sleeve is Labeled "Physics is Phun". Donated by Rebecca (Becky) A. Konshak. Used in H.S. in Lakewood, CO Instruction Manual 4.5MB |
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Concise Model 600 Science Tables - US Govt. ISRM 10.03.02.05 |
Concise Model 600 Science Tables - Copyright 1968 Made in Japan by Concise, Designed by Sama & Etani, Model 600 - Insert ST Front Scale: 4in || D ( C, CI, L, A, S Cos, T Cot, K) || 10cm Back: Periodic Table of the Elements, Temperature conversion Chart Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. Advertiser: U.S. Government Donated by Prof. Robert C. Eaton, Univ of Colorado |
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Concise 600ST Data Computer Michael O'Leary Memorial ISRM 21.08.12.01 |
Concise 600ST Data Computer - Michael O'Leary Memorial Made in Japan by Concise - design by Sama & Etani ©1976 Special run for The International Slide Rule Group Front Scale: 4in || D ( C, CI, L, A, S Cos, T Cot, K) || 10cm Back: Periodic Table of the Elements, Temperature conversion Chart Insert: Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. |
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Concise 1000 Addiator With Science Tables ISRM 21.07.15.01 |
Concise 1000 Addiator With Science Tables (Type CE) Made in Japan by Concise - design by Sama & Etani ©1968 With 9 digit addiator on back and Stylus in sleeve pocket Front Scale: D ( C, CI, L, A, S Cos, T Cot, K) Back: 4in, Addiator (9 places), 10cm Insert: Type CE - Conversions for Flow, Pressure, Energy, Power, Volume, Velocity, etc. |
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Concise Mallinckrodt Radiological Tables And Circular Slide Rule ISRM 21.11.23.01 |
Concise Mallinckrodt Radiological Tables And Circular Slide Rule Made in Japan by Concise - Slide rule concept Designed by Sama & Etani ©1966 Tables designed by William E. Powers, M.D., Irwin D. Zim, M.D., William C. White, B.S, Washington University School of Medicine, St. Louis, Missouri. Front Scale: A, D ( C, O.T 1/2, B, DT, C°, F° ) Back: Instructions/Guides for the radiologist. Insert: No details available. Note: uses Conray Megumine Iothalamite 60% Injections to obtain readings. Gift of Bruce Healy Bruce writes: "I am not a slide rule expert. My father gave me my first calculator in my sixth grade (1978), and I never had to really learn the slide rule. Attempts to teach me happened, but never stuck well. My father (still) teaches EE at Santa Clara University at age 88, I graduated with a ME degree in 1987. So, although I was on the cusp of the technology change, slide rules still fascinate me. Your ISRM web site has been a valuable resource every time I happen to find a slide rule that is in need of rescue and a new caring home. Thank you for providing such a great source of information. I would happily send you this slide rule for the lowest amount that Ebay will allow, $1. Please continue your good work, and know that it is appreciated. Be healthy, Bruce." |