Artifact Details Title Acu-Math slide rule Catalog Number 102631702 Type Physical object Description The object consits of a slide rule and a leather case. Both the case and the slide rule have yellow adhesive stickers with the donor's ID number handwritten in black ink. Date 1955 ca. Manufacturer Acu-Rule Co. Place Manufactured U.S. Identifying Numbers Model number 900 Other number S136 Donor's ID number for rule Dimensions overall: 3/4 in x 12 1/2 in x 12 1/4 in Category Pre-computer/slide rule Credit Gift of Mike Konshak Lot Number X3741.2007