Artifact Details Title Golden Gem Adding Machine Catalog Number B187.81 Type Physical object Date ca. 1904 Manufacturer Automatic Adding Machine Co. Place Manufactured U.S. Identifying Numbers Serial number 56950 Dimensions 3/4 x 4 3/4 x 3 1/4 in. Category Calculator/mechanical Collection Title Gwen Bell artifact and book collection Series Title Pre-computing artifacts Lot Number B187.81