Stamped in white on each of the three black plastic connectors
Printed in white along the extraction end edge on the circuit side
Scrached into the top right corner of the component side of the board.
overall: 1/2 in x 15 in x 12 in
On the component side there are over 100 intergrated circuits. At the insertion end there are three black plastic 36 pin connectors. In the top left corner there is a white sticker that reads, "Tested good 2-Jul-80 PB".