Level standardizer 1502 A system building block
Digital Equipment Corporation (DEC)
||Etched in solder near the insertion end of the board
||Stamped into the front of the of the aluminum frame
||Stamped into the aluminum frame
overall: 1/2 in x 4 1/2 in x 7 in
Surrounding the board is an aluminum frame and a blue plastic connector."LEVEL STANDARDIZER 1502 A" is etched in solder near the insertion end.