The object is a module with nine sockets, seven are populated with vacuum tubes of varying size and 2 components, possibly tube replacements. The sockets are framed by a metal handle. Attached to the handle is a chassis containing 12 printed circuit boards, all of which are wired to 3 male connectors at the bottom of the chassis. There are 7 IBM inspection stamps on the chassis, six of which are legible and easily viewable.
Date
1958
Manufacturer
International Business Machines (IBM)
Identifying Numbers
Other number
044
The number is stamped on the chassis.
Other number
3087599
The number is stamped on the chassis.
Other number
6611
The number is handwritten on a round paper sticker located on the inside of the handle.
Other number
6611 DUP 1
The number is handwritten on a round paper sticker located on the inside of the handle.
