Printed in silver on reverse side of substrate parallel to left-hand edge
overall: 2 1/2 in x 5 1/2 in
This is a B169 module with a green board and a blue plastic extraction handle, attached by two rivets. The module is marked by three inspection stamps. "W" is printed in red several times throught the board. "Inverter B 169B" is printed on the solder side.