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Circular Slide Rule


Concise Circular Slide Rule No. 260 With Case Made In Japan 

$12.75


Vintage Fullerton Circular Slide Rule No 1450 Acudial Made in Japan

$29.98


Vtg SAMA & Etani Circular Slide Rule No. 90 USA made 3 1/2" diameter W/ Case

$18.85


Binary Circular Slide Rule 1931 Complete Charles Bruning Company Inc

$30.00


Vintage Gilson Binary Circular Slide Rule 1931 1940 COMPLETE with instructions.

$10.50


Vintage Circular Consise Slide Rule & Equivalence Chart No. 28 3-1/8" Dia Japan

$12.99


Vtg Concise Circular Slide Rule No. 28 Japan made 3 3/16" diameter W/ Case Nice

$13.85


Fullerton 1450 Circular Engineering Acudial Slide Rule Vintage Made in Japan

$18.00


FULLERTON 1450 Circular Slide Rule with Case

$39.95


C-Thru Anglo-Metric 1944 Convertisor Circular Slide Rule No. 6 Calculator NEW

$50.00


Smith Chart Rotary Slide Chart And Circular Slide Rule, 1950’s - 1960’s Microlab

$49.99


Circular Midget Slide Rule - Vintage Manual Case

$30.00


General Electric Defense Electronics Division Circular Slide Rule Rare!!! 1950

$35.00


Vintage Circular Slide Rule w/Sleeve Chrysler Airtemp

$9.99


1934 Mascot Circular Slide Rule

$75.00


VINTAGE 1961 USAF ATTACK COMPUTER CIRCULAR SLIDE RULE INSTRUCTIONS! WEAPONS NEWS

$59.99


Vintage Concise Alpha 4028 circular slide rule Garrett Mnfg Ltd * Free Shipping

$21.70


Logarithmic Circular Slide Rule KL-1, Vintage 1960s Soviet USSR, two sides #949

$75.00


1965 Russian USSR Engineer Logarithmic Mathematical Circular Slide Rule KL-1

$29.00


BIG CIRCULAR SLIDE RULE NORMA MERKURIA 190 DBGM #8

$79.90


1957 CONVAIR F-102A DELTA DAGGER PERFORMANCE CIRCULAR SLIDE RULE! CONFIDENTIAL!

$999.99


NICE! VINTAGE CONCISE CIRCULAR SLIDE RULE 28N ELECTRIC TEMPERATURE MEASURING

$38.99


SAKRETE Sand Concrete Mix Circular Slide Rule Calculator

$14.99


BELL SYSTEMS GUY RULE CIRCULAR SLIDE RULE

$49.99


Vintage Fearns Tank Capacity Circular Slide Rule Fearns Calculators D20 old 992K

$45.00


Vintage Concise Model CTCS-552 Circular Slide Rule Made For Monsanto

$18.00


Post WW2 DDR Cold War military defense army circular rotary slide rule with case

$249.00


1966 Concise Sama & Etani Model EE-112 Circular Slide Rule AC General Products

$32.79


1967 Concise Sama & Etani Model CTCS-552 Circular Slide Rule Allis Chalmers Logo

$32.79


1966 Concise Sama & Etani Model EE-112 Conversion Tables & Circular Slide Rule

$32.79


Vintage 1967 Circular Slide RULE LOGARITHMIC Soviet Russian USSR box manual

$50.00


Vintage CONE - DRIVE Concise Circular Slide Rule w/ Case Japan * (TS)

$24.87