Artifact Details Title IBM 704 Operator I/O Reference Card Catalog Number 102743363 Type Physical object Description Object is a clear plastic laminated paper card showing various operational codes relating to I/O devices on an IBM 704 System. Some smudges on the surface of the plastic. Date 1954 ca. Dimensions overall: 1/8 in x 3 1/2 in x 2 1/4 in Category Ephemera/other Lot Number X6338.2012