This card cage has a wire wrap back plane, with 40 "FLIP CHIP" cards plugged into sockets. There is a relay on a perf-proto board attached to the front. A tag attached to one end is labeled PDP-12. Each of the 40 cards have purple pull handles.
Date
ca. 1975
Manufacturer
Digital Equipment Corporation (DEC)
Identifying Numbers
Other number
1943
Printed on a paper label next to the power supply terminals, also cast into the end plate below the power supply terminals
Other number
21018
Stamped into a metal label, "American Used Computer Corp." on inside of end plate at power supply terminal end