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Round Slide Rule


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

$99.99


PICKETT & ECKEL Chicago N3-ES SLIDE RULE & Leather Case ROUND BLACK LOGO NICE!

$98.00


Gas Flow Calculator Computor Round Slide Rule Journal 1935 Copyright

$24.99


Vintage-Eugene-Dietzgen-Slide-Rule-Binary-Round-Aluminum-Made-in-USA-1930's

$29.95


#2 of 2, VTG "FEDERAL AVIATION AGENCY" ROUND "PAPER SLIDE RULE" FT WORTH, TEXAS

$16.99


#1 of 2, VTG "STATE FARM INSURANCE" ROUND "PAPER SLIDE RULE" FROM SHERMAN, TEXAS

$16.99


VINTAGE EUGENE DIETZGEN MIDGET 4 1/4 ROUND SLIDE RULE MADE IN USA PATENT 1936

$19.99


DILLON Tensile Strength Computer Round Specimens - Slide Rule

$17.93


ALRO 600E Electric circular slide rule round Rechenscheibe metal case Holland NL

$225.00


KL-1 VINTAGE SOVIET ROUND SLIDE RULE LOGARITHMIC CALCULATOR *A116*

$27.00


1966 VINTAGE RUSSIAN LOGARITHMIC CIRCULAR ROUND SLIDE RULE CALCULATOR KL-1 RULER

$45.00


KL-1 VINTAGE SOVIET ROUND SLIDE RULE LOGARITHMIC CALCULATOR

$26.00


Vintage USSR soviet round pocket watch model slide rule KL-1

$39.00


KL-1 VINTAGE SOVIET ROUND SLIDE RULE LOGARITHMIC CALCULATOR

$27.00


RUSSIAN SOVIET MECHANICAL CALCULATOR CIRCULAR ROUND SLIDE RULE 60s POCKET TYPE

$30.00


vintage aeroflot Air Force round Soviet Russian Slide Rule USSR pilot tool

$40.00


ALRO 200R circular slide rule round WW2 world war 1940 log metal case Holland

$89.00


Vintage USSR Soviet Circular Round Slide Rule 60's

$39.97


USSR MECHANICAL CALCULATOR ROUND SLIDE RULE POCKET TYPE w english manual

$30.00


VINTAGE USSR RUSSIA POCKET ROUND LOGARITHMIC ENGINEER SLIDE RULE DEVICE KL-1

$38.00


Soviet slide rule KL-1,round lineup, calculator,logarithmic ruler.USSR

$25.99


VINTAGE RUSSIAN POCKET ROUND LOGARITHMIC ENGINEER SLIDE RULE DEVICE

$44.99


Slide Rule Circle Russian Round Logarithmic KL-1 Engineer Circular Logarithmic

$46.37


GERMAN ROUND POCKET SLIDE RULE LOGOMAT

$39.00


Soviet slide rule KL-1,round lineup, calculator,logarithmic ruler.USSR.

$33.99


vintage round slide rule NOVA MADE IN SOVIET RUSSIA USSR speed measuring!

$29.99


Slide Rule Circle Russian Round Logarithmic Engineer Circular Plastic USSR Red

$38.29


Soviet slide rule KL-1 round lineup calculator logarithmic ruler USSR Soviet #2

$25.00


USSR Soviet Slide Rule KL-1, Round Lineup, Logarithmic Ruler.

$30.00


Slide Rule Circle Russian Round Logarithmic KL-1 Engineer Circular Logarithmic 2

$39.52


veryRare OLD Russian USSR ROUND SLIDE RULE KL-1 +box

$100.00


Slide Rule Circle Russian Round Logarithmic KL-1 Engineer Circular Logarithmic

$62.04


LUFKIN RULE Co TOOL Screw Thread Calculator Round Slide Rule Tap Drill 1935 VTG

$14.00


Vintage 1944 Greenlee Tools Co Handy Calculator Round Slide Rule

$14.99


Chevron rpm AVIATION course ground speed ROUND SLIDE RULE

$19.95