Digital Equipment Corporation (DEC)
||Silk-screened on plastic connection panel
||Etched on wiring side
||Engraved in plastic connection panel
overall: 1 1/2 in x 4 1/4 in x 6 1/4 in
Object is a single flip-flop circuit on a PCB enclosed in a module having 5 telephone jacks on one end and 15 connection points on the other end.