Keuffel & Esser Company
||Donors ID number for slide rule
||Donor's ID number for box and case
in box: 1 5/8 in x 13 1/4 in x 3 in; overall: 1/2 in x 12 1/2 in x 2 in; overall: 1 1/2 in x 13 in x 2 1/2 in
Object consists of slide rule, case, manual, and box. The manual cover reads: "SLIDE RULE MANUAL" "LOG LOG DUPLEX DECITRIG No. 4081" The box label reads: "K+E 4083-3S LOG LOG DUPLEX VECTOR SLIDE RULE WITH LEATHER CASE"
Pre-computer: slide rule
Gift of Mike Konshak