Handwritten on a white sticker at the bottom of the unit.
Stamped in white on the side of a bracket.
overall: 12 1/2 in x 26 in x 7 1/2 in
The object is a rack holding ten vacuum tube modules. Each module has sockets for two vacuum tubes. The object also has 11 BNC connectors and five terminal strips. There are three indicator light assemblies attached to the object. The assembly contains one white light and one red light. The vacuum tube modules have a paper tag labeled "E7-2-1" through "E7-2-10".