Vintage Lawrence DeLuxe Slide Rule 10-B with Box MADE IN USA

Vintage Lawrence Engineering Service Deluxe Slide Rule, original box Made in USA

Lawrence Slide Rule 10-B, Rare MAGNIFYING CURSOR, Original Box, Instruction Book

Lawrence Deluxe Slide Rule 10-B Made In The U.S.A With Case

Vintage Lawrence Engineering Service Slide Rule 10-B Original Box Made in USA

Vintage Lawrence Engineering Service 10-B Slide Rule, 1940s

Vintage Lawrence Engineering Service Deluxe Slide Rule, original box Made in USA

Vintage LAWRENCE SLIDE RULE 10 B Original box