I have these four ignition switches forever!
There are no maker marks on them.
Three are the same... sort of!
The back has to be unscrewed from the cover, the other is this sort of push and turn system.
The push and turn has markings on the back that say pat. appl. for. And I can make out coil, bat, head.
The three others have on the back on top, A9, mag, ground, head, and bat .
Can't see much else!
Any ideas?
Thanks!