I got this sign about 20 years ago when the Chevy dealership I worked for was cleaning out and demo'ing a storage building onsite. This sign was destined for the trash dumpster but i snagged it. I have had it about 20 years, and I know it wasnt displayed for many years prior to that because of how much crap was piled in front of it in the storage building. I have no idea how old it is, if its worth holding on to or if its perhaps collectible or what. Its a florescent light fixture type of sign, it has sockets for 3 florescent tubes. No switch...it just plugs in....it is marked with the Chevrolet bowtie logo on the top but I find no other markings to help figure out what era it would have been displayed in...it has eye bolts at the top and is made of a metal frame with plastic sign panels... ideas? i have googled and looked all over to try to figure out something but I am stumped...its heavy and about 3 feet wide, 2 feet tall and 7 inches thick....