Can anyone tell me some info on this sign? I'd love to know when its from and its value.

Weren't those proven to be installed on the front of a Locomotive engine?

possibly used on busses ? .. ...

Here is an old thread about these vertical General Motors signs

http://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Number=674317

Pretty sure there are a few different sizes of these signs. Yours appears to me to be the smaller size. I recently had a radiator shroud that had one of these on each side. I believe the shroud I had came from a GMC powered construction tractor, or like a gas or diesel generator ,

I think you have the winning answer. This sign came in a pair. If I had to reckon I'd say they both were on the same thing at one time. Any idea on age??

[img]https://imgur.com/xXQ4CfM[/img]

Pretty sure 40s-50s maybe 30s as well

Thanks JimT!