Frederick Post Company
||Donor's ID number for rule
in box: 7/8 in x 12 3/4 in x 1 3/4 in; overall: 3/8 in x 12 5/8 in x 2 1/4 in
The object consists of a slide rule and leather case. Writen on the inside flap of the case inj black ink "Schwarz CS-29".
Pre-computer: slide rule
Gift of Mike Konshak