The object is a module with nine sockets, all of which are populated with vacuum tubes. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 11 printed circut boards, which are wired to the 3 male connectors at the bottom. There are two IBM inspection stamps.
Date
1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
001882
Stamped on the chassis.
Other number
3087033
Stamped on the chassis
Other number
6054-6056
Handwritten on layered round stickers on the inside of the handle.
Other number
B02 D X
Typed on a paper label at the front of the handle.
Other number
D 3087033 001882
Typed on a paper label at the front of the handle.
