This has been floating around in my car parts stash for 25 years. It has a 1/4” hole and an Allen set screw it’s about 1 1/4” tall. Probably not even automotive but....
Perhaps you should ask your wife; and buy her some new batteries while you're at it. I am Butch/56sedandelivery.
Thanks for the replies Gents, I’m going to try to find a use on a future project. At least I know what it is now!
Ehhhhhhh, I think it's a 51 ford wiper knob. Radio knobs had a little spring clip and a flat spot inside that corresponds to a flat [or slot] on the radio shafts. Wiper knobs had the set screw.