1939 CADILLAC LASALLE HEADLIGHT SWITCH. Knob  moves   like it should, …..tested with ohm meter...screws and knob included .. Hard to find better 75+ year old part. NOT TESTED ON A CAR. BUT IT APPEARS GOOD.. EVERYTHING SHOWN IS INCLUDED,  THIS MAY FIT  other years , BUT I'M NOT SURE.

. See outdoor and overhead light photos before bidding.