Artifact Details Title Slide rule Catalog Number 102631429 Type Physical object Description Object is a large slide rule. One edge is marked in inches and another marked in centimeters. The slide rule and the related case are made by Dietzgen, but the cursor is clearly marked Keuffel & Esser Co. N.Y. suggesting it is from a different rule. Manufacturer Dietzgen Place Manufactured U.S. Identifying Numbers Other number 1752 Etched into end of slide Other number L05 Donor's ID number for rule Dimensions overall: 1 5/8 in x 21 1/8 in x 5/8 in Category Pre-computer/slide rule Credit Gift of Mike Konshak Lot Number X3741.2007 Related Records 102731090 Slide rule case