The subject badges are oval and made of stamped brass approximately 21 X 38 mm. They have a "Ford the Universal Car" script winged pyramid on top with the employee number stamped below. If you have one I will trade a restored hand cranked coil tester for it.
Ron (the Coilman) Patterson
Here is a photo.
If somebody carved one of these out of wood, soap, foam, or anything, I could cast them out of brass or aluminum.