||Donor's ID number for rule
in box: 1/8 in x 6 1/4 in x 1 7/8 in; overall: 1/4 in x 6 in x 1 1/8 in
The object consists of a slide rule and case. Imprinted on the case reads "Tower Construction Co. - Sioux City, Iowa".
Pre-computer: slide rule
Gift of Mike Konshak