Artifact Details Title Vacuum tube type ITL2C51 Catalog Number 102682055 Type Physical object Manufacturer Tung-Sol Lamp Works Place Manufactured U.S. Identifying Numbers Other number 432 Other number 9-54 Handwritten in paint on tube (installation date?) Other number ITL-2C51 Tube type Dimensions overall: 1/2 in x 1/2 in x 1 5/8 in Description Object consists of a single vacuum tube. Lot description indicates that this was used on the Harvard Mark III calculator built for the U.S. Navy Proving Grounds. Category Component/vacuum tube Credit Gift of Gerald W. LaVigne Lot Number X4113.2007
