Vtg (1950s?) Engineering Instruments Model 10 B 10” Slide Rule w/Booklet

Vintage 1952 Booklet: Slide Rule Instruction Book Engineering Instruments

Engineering Instruments Inc Slide Rule Peru, Indiana USA Wood

Vintage Engineering Instruments Inc Peru Indiana Wood Slide Rule w/ Instructions

Vintage SIC SCIENTIFIC INSTRUMENTS BAMBOO SLIDE RULE INSTRUCTIONS BOOKLET

Vintage Lawrence Engineering Service Wood 8” Slide Rule Wabash Indiana USA

Slide Rule - Engineering Instruments, Inc. 250-V w/case & instructions

Mannheim Type Slide Rule / Sleeve & Booklet USA Vintage 1950