Alto II CRAM Board circuit board
There are several hand applied engineering changes on wiring side.
Xerox PARC (Palo Alto Research Center)
||Ink stamped on left side of wiring side of board
||Etched below ink stamped number on component side of board
||Ink stamped on component side of board
overall: 1/2 in x 11 in x 7 3/8 in