PLEASE HELP! Buick, Olds, Potiac, GMC product preview gauges!
Hi there. Just looking for a little info on this item I picked up recently. It has a plaque on the top that says it is a product preview of the 1978 line. Also looks like it had "928B" written on it in marker on the back for some reason. Not sure if that means anything. Just wondering if anyone has seen something like this before, or has one, or knows where I can find out more about it (where it came from etc.) I live in Michigan about 30 miles outside Battle Creek, so I'm very interested to find out what it is. Pics attached. Any and all help is appreciated!
Also, if I posted this in the wrong area, please let me know so I can move it!