I found this 1977 half no mint mark. It's interesting the texture of it is very smooth and it looks almost like chrome. Did someone do this to it on purpose? Its not a proof.... What is it?
1970's high-school metal shop chrome-plating fun. Back when we drove around with shotguns in racks in the cab of our pick-ups, general admission for large rock-n-roll concerts, and you won feathered roach clips at the county fair.