On round paper sticker on the inside of the handle
D 3087603 000159
On a paper label on the handle
overall: 2 3/4 in x 13 in x 16 1/2 in
The object is a module with 6 sockets, 5 of which have vacuum tubes. One socket is plugged. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 8 printed circuit boards, which are wired to the 2 male connectors at the bottom.