Printed on the solder side of the board at the insertion end
Stamped into face of the aluminum frame
overall: 1/4 in x 4 1/2 in x 7 in
The object has a green fiberglass board surrounded by an aluminum frame and a blue plastic connector. On one side there are several components which include two potentiometers, several resistors, transistors, and capacitors. Printed on the solder side there is lettered grid A-Z.