Etched in solder at the connector end of the solder side
Engraved on the edge of the frame toward the insertion end
overall: 1/4 in x 4 1/2 in x 7 in
The object consists of neatly arranged components on a green board, including four transistors. There is a blue plastic connector and an aluminum frame around the board. There are two inspection stamps on the component side. "NP" appears five times in red and appears to be molded into the fiberglass board.