Artifact Details Title Aristo slide rule Catalog Number 102631811 Type Physical object Description The object consists of a slide rule, plastic ruler, paper insert, and plastic case. Written on a piece of paper inside the case is"Karl-Heinz Mertens 4054 Nettetal-1 Einstein str.6" Manufacturer Dennert & Pape Place Manufactured Germany Identifying Numbers Model number 0968 Other number 2LST10 Stamped into the side Other number S210 Donor's ID number for rule Dimensions in case: 3/4 in x 13 1/2 in x 2 1/2 in Category Pre-computer/slide rule Credit Gift of Mike Konshak Lot Number X3741.2007