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Circular Slide Rules


GARRETT AiResearch Circular Slide Rule - Concise NO. 28 N - New 28N Sliderule

$29.99


Soviet circular slide rule KL-1. THE USSR.

$27.00


Vintage Circular Slide Rule Scientific Instruments Professional No 250 (round)

$112.79


Vtg Amphenol Circular Slide Rule&Radio Transmission Line Calculator-Smith Chart

$12.05


Vintage Gilson Dietzen USA Midget Circular Slide Rule W/Pouch & Manual VGC

$9.50


1966 Sama & Etani Concise Circular Slide Rule Nupro Nuclear Model CTCS 552

$24.95


Psychrometric Calculator ~ Air Conditioning & Meteorology Circular Slide Ruler

$49.99


1931 8 1/4" Binary Circular Slide Rule w/ Case/ Instruction Eugene Dietzgen Co.

$45.00


Concise Circular Slide Rule Japan No 28 in plastic case

$20.00


Vintage Sama & Etani Circular Slide Rule Concise Science Tables 600 ST w/Case

$29.99


Concise Type E Circular Slide Rules and Conversion Tables with Case

$17.00


Concise Type E Circular Slide Rules Conversion Tables – instructions, leaflets

$24.99


Lot of 4 Vtg.CONCISE Circular Slide Rules~3 Sealed~w/Cases & Instructions~Japan

$45.00


LOT Vint Engineering CALCULATORS Circular Advertising Slide Rules Guides Tables

$50.00


VINTAGE PICKETT CIRCULAR DIAL RULE 101-C EX W/ORIG. POUCH/MANUAL

$72.50


2 1934 The Mascot Circular Slide Rules In Case (With Very Dry/Fragile Directions

$50.00


CE Raymond Div Circular Slide Rule - Concise NO. 28 New 28N Slide Rule 

$30.00


Concise Type E Circular Slide Rules and Conversion Tables with instructions

$25.00


Pickett Circular Slide Rule Model 107ES & Slide Rule Model 160 - Guide & Cases

$184.99


VINTAGE LOGOMAT MINI 2001 world smallest CIRCULAR SLIDE RULE WITH POUCH

$50.00


Vintage Concise 270N Circular Slide Rule Japan Case & Instruction Manual

$37.00


Vintage Concise Circular Slide Rule Japan w Case Booklet No. 320

$25.00


RARE 12 1/4" DIAMETER Full Round Circular OBLIQUE TRIANGLE SLIDE RULE c1940s

$99.99


Fullerton Circular Slide Rule Acudial 1450 Japan with Vinyl Case

$29.50


Pratt & Whitney Circular Slide Rule Gas Turbine Computer +Case +Instruction Book

$59.99


Gilson Midget Circular Slide Rule with Manual

$59.99


(3) Vintage Concise Circular Slide Rule No 28 Case Instructions lot advertising

$45.00


VINTAGE PICKETT CIRCULAR DIAL RULE 101-C EX W/ LEATHER ORIG. POUCH

$72.50


Concise Circular Slide Ruls No.28 w/Pan Am Logo, Instructions and Case, VGC

$20.00


Vintage Circular Slide Rule KL-1 USSR Mechanical Calculator *US SELLER* #1466

$65.00


1930s Eugene Dietzgen Co Circular Atlas Midget Slide Rule #43

$44.99


Vintage Circular Slide Rule KL-1 USSR Mechanical Calculator *US SELLER* #1462

$72.00


World War II Vintage 1945 Airspeed Circular Slide Rule New Old Stock w Box G-1

$29.00


Military defense army circular rotary slide rule leather case flight calculator

$200.00


New Stadia Computer Circular Slide Rule+original pack. USA - C Thru Ruler Comp.

$26.49


VINTAGE CONCISE CIRCULAR SLIDE RULE WITH INSTRUCTIONS AND HOLDER, 28 N, EXC COND

$16.00


Vintage Circular Slide Rule Graco MCM Division Concise No 28

$24.00


1936 Vintage Binary Circular Slide Rule And Case Binary Slide Rule. (CC5-1)

$89.00


Vtg Dowell 15 Inch Circular Slide Rule Dow Chemical Company Oil

$25.49


Vintage Lufkin Tools Charts Screw Thread Circular Slide Rules Machinist

$24.99


Vintage VTG Fullerton Acudial Circular Slide Rule No.1452 - Japan Manual

$25.00


Concise No. 28 Circular Slide Rule Plastic

$19.50


Circular Slide Rule With Booklet & Case Fullerton, 1950's

$15.00