The object is a module with 9 sockets, all of which are populated, with vacuum tubes of varying size. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 14 printed circuit boards, which are wired to the 3 male connectors at the bottom. There are four IBM inspection stamps.
Date
ca. 1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
000370
Stamped on the chassis
Other number
16
Handwritten in pencil on the handle between the third and fourth socket from the left.
Other number
3087615
Stamped on the chassis
Other number
6537
Handwritten on a round sticker on the inside of the handle, it stuck over a sticker with the numbers _0907
