Artifact Details Title Acu-Math slide rule Catalog Number 102631689 Type Physical object Description The object consists of a slide rule and leather case. There are yellow adhesive stickers on both the slide rule and the case with the donor's ID number handwritten in black ink. Date 1968 ca. Manufacturer Acu-Rule Co. Place Manufactured U.S. Identifying Numbers Model number 400 Other number S141 Donor's ID number for rule Dimensions overall: 3/8 in x 12 1/2 in x 1 1/2 in Category Pre-computer/slide rule Credit Gift of Mike Konshak Lot Number X3741.2007