Artifact Details Title Harvard Mark III magnetic head housing Catalog Number 102682077 Type Physical object Description Object consists of magnetic head housing. Believed to be part of drum memory used on the Harvard Mark III. "HARVARD COMPUTATION LABORATORY" cast into housing. Date 1949 Manufacturer Harvard Computation Laboratory Place Manufactured U.S. Dimensions overall: 3/8 in x 1 in x 1 3/8 in Category drum