VINTAGE Mannheim Accu-Math SLIDE RULE Model 400 w/ Carrying Case MINT CONDITION

Vintage Acu-Math No. 400 Slide Rule w/ Case & Instruction Manual

vintage Acu-math no. 400 slide rule w/ case, good condition made in U.S.A.

Vintage Fullerton ACU 400 Slide Rule w/Case

Vintage ~ Mannheim Type Slide Rule ~ Acu-Math No. 400 w/Case & Manual

Vintage Frederick Post (POST) 1460 Versalog Slide Rule w/ Leather Case

Vintage Acumath No. 400 Mannheim Slide Rule w/ Instructions and Case Made USA

VINTAGE PICKETT 1959 SLIDE RULE W/BLACK LEATHER CASE MODEL 1011-ES