Vintage Lawrence 10" Slide Rule Model 250-BT W Instruction Book Ships Free For Sale

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Vintage Lawrence 10" Slide Rule Model 250-BT W Instruction Book Ships Free:
$22.50

Here is a Vintage Lawrence 10" Slide Rule Model 250-BT With Instruction Book Ships Free The box is marked Lawrence Engineering Service, Peru, Indiana. The wooden slide rule works great how ever the box it comes in has damage (see photos).