Artifact Details Title Postcard - Sage Catalog Number 102672054 Type Still Image Description Color postcard: "Sage AN/FSQ-7 Vacuum Tube Computer for Air Defense (1957)" Pictured is William J. Eberfeld using a Light Gun. Publisher The Computer Museum Place of Publication Boston, MA, US Dimensions overall: 4 in x 6 in Category Photograph Credit Courtesy of Gwen Bell Lot Number X7413.2015