Keuffel & Esser Company
||Donor's ID number for rule
in box: 1 1/2 in x 8 1/4 in x 3 in; overall: 3/8 in x 7 in x 1 3/4 in
The object consists of a slide rule, leather slip case, owners manual, supplement to the Maunals, and a cardboard box.
Pre-computer: slide rule
Gift of Mike Konshak