Artifact Details Title IBM disk storage products memento disk platter Catalog Number 102678146 Type Physical object Description Object is an 8.25" disk platter titled "Disk Storage Products" with the model numbers of key IBM disk drives between 1956 and 1989 arranged in a timeline. Interior hole diameter is 4 inches. Manufacturer International Business Machines Corporation (IBM) Place Manufactured U.S. Dimensions overall: 1/8 in x 8 1/4 in x 8 1/4 in Category Memory/disk Credit Gift of David R. Johnson Lot Number X3312.2006