The number is stamped on the component side of the board.
The number is etched and drilled on both the component and solder side of the board.
The number is etched on the componeent side of the board.
overall: 1/2 in x 12 in x 17 1/2 in
The object is a populated circuit board. Etched into one side is "FAIRCHILD SEMICONDUCTOR" and "DIGITAL SYSTEMS RESEARCH." The integrated circuits on the board are dated either 1969 or 1970. The board was housed in a plastic bag that had a piece of masking tape that read "TM 65 backup." The solder side of the board has a piece of masking tape that reads "Looks Strange" with an arrow drawn on tape that points to a pin on an IC.