Shift counter & buffer flip-flop S6203C system building block
Digital Equipment Corporation (DEC)
||Printed on the solder side of the board toward the insertion end
||Stamped into the aluminum face of the frame
||Stamped into the aluminum frame at the side
overall: 1/2 in x 4 1/2 in x 14 1/4 in
The object is a PCB with on-board components in an aluminum frame with connectors on opposite ends.