Vintage 1976 General Motors Bicentennial Chevrolet Dealership Showroom Sign. This is made of a plastic material. The size is approximately 47 inches at widest part by 44 inches tall. This in in Good condition with some minor pain ware/loss, some dirt from being stored away in a garage, a few small scuffs, could use a cleaning. The pictures are part of the description, so please view all pictures. All pricing is up front so you know exactly how much everything is! International Buyers – Please Note. We do not mark merchandise values below value or mark items as “gifts” – the US and International government regulations prohibit such behavior.