The object has a brown board surrounded by an aluminum frame and a blue plastic connector. On one side there are various components including transistors, resistors, and capacitors. On the solder side there is a printed circuit with a grid lettered A-Z.
Date
1960 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Identifying Numbers
Model number
1105 D 00519
The second number printed on the solder side at the insertion end