12” Slide Rule

Vintage Dietzgen No. 1767P Slide Rule With Case Made in USA

Vintage KEUFFEL & ESSER K&E Beginner's Slide Rule N4058W with Original Case USA

Lawrence Slide Rule 250-BT 1940’s Vintage Lawrence Engineering Service w/Box

Acu-Math No. 1500 12-1/2" Plastic Slide Rule with case

Vintage Pickett & ECKEL 271 Model N 1010-T R I G Slide Rule- *No Leather Case*-

Kurffel & Esser Co Slide Rule

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