VINTAGE SLIDE RULE LOGAREX 27602-II EXPONENT PS KW MATHEMATICS LOGARITHMIC

Vintage Bamboo Sun Hemmi Slide Rule No 257 with Leather Case made in Japan

VINTAGE SLIDE RULE ARISTO STUDIO 0903 VS-2 Germany MATHEMATICS LOGARITHMIC

Vintage Celanese Celcon Slide Rule with Leather Case - 004415 Doric K&E Co.

Soviet USSR Logarithmic Slide Rule in Original Case Ukraine Original Vintage

Vintage Doric KE 4168 Slide Rule With Leather Case L

Vintage Slide Rule ELEKTRO LOGAREX 27402-III Leather Case Czechoslovakia 1972

Vintage Slide Rule Lot - Pickett, Concrete, Converter, Shire Brothers -Mixed Lot