Keuffel & Esser slide rule
Keuffel & Esser Co.
||On the middle portion of the slide rule, left hand side and on one edge
||On the middle portion of the slide rule, right hand side
||Donor's ID number for object
overall: 1 in x 13 in x 2 3/8 in; overall: 1/2 in x 12 1/2 in x 2 in
Object consists of slide rule and case
Gift of Mike Konshak