Artifact Details Title Slide rule Catalog Number 102631575 Type Physical object Description The object consists of a slide rule and leather case. Printed on the back of the slide rule is "25th ANNUAL CONFERENCE FINANCIAL ANALYSTS FEDERATION MAY, 1972". Date 1972 ca. Manufacturer Keuffel & Esser Company Place Manufactured U.S. Identifying Numbers Model number 4150-1 Other number P003 Donor's ID number for rule Serial number 026541 Dimensions overall: 1/4 in x 6 in x 1 1/4 in Category Pre-computer/slide rule Credit Gift of Mike Konshak Lot Number X3741.2007