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.
Date
1958 ca.
Manufacturer
IBM
Identifying Numbers
Other number
3087603 000159
Stamped on the chassis on the top
Other number
6525 6526 6527
On round paper sticker on the inside of the handle
