I found this in a 67 skylark ashtray of a parts car I have. I've never seen a thing like it before. You push in and twist to open it up to the bulb in the second picture. Anybody know what this might be for?
Looks similar to either the park brake warning light or four way flasher indicator light on a 66 and 67 Ford Galaxie.
https://www.trifive.com/threads/1955-1956-parking-brake-warning-light.234280/ Thanks guys, this sure looks like what it is.