538 6 volt6 volt Turn Signal Flasher 538

This 538 flasher is new, NOS, Aluminum can.  This flasher has  Black lettering on the can as pictured.  A Tung-sol brand flasher,  round and tall in shape and in mint condition.  It is a 3 terminal flasher with the terminals in the normal right angle configuration.  

This flasher was used by Ford on the 1954 Ford Mainline.  Could have been delivered on other Fords also.

 These instructions are always on the box flashers come in

X — Power (hot lead)

L — Load (to switch operating lamps to be flashed)

  P — to Pilot indicator lamp (this connection may be omitted. Flasher will operate properly either way)