Artifact Details Title Vacuum tube type 5670 Catalog Number 102682054 Type Physical object Description Object consists of a single vacuum tube. Object has been marked with red paint which has chipped off and is now indecihperable. Lot description indicates that this was used on the Harvard Mark III calculator built for the U.S. Navy Proving Grounds. Manufacturer Harvard University Identifying Numbers Other number 5670 Tube type Dimensions overall: 1/2 in x 1/2 in x 1 5/8 in Category Component/vacuum tube Credit Gift of Gerald W. LaVigne Lot Number X4113.2007
