The object is a module with nine sockets, three of which are populated with vacuum tubes and six of which are plugged. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 12 printed circuit boards, which are wired to the 3 male connectors at the bottom. There are two IBM inspection stamps.
Date
ca. 1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000169
Stamped on the chassis
Other number
3087035
Stamped on the chassis
Other number
6061-6062
Handwritten on a sticker on the inside of the handle.
