I have three pennies I'd like to know about. The first thought that came to mind for coin #3 was that is was plated, but it's unlike other plated coins I've seen. It weighs 2.51g and doesn't stick to a magnet. Any thoughts on these three?
1 - damage from a punch or something else 2 - damage from another coin being pressed into it making the curve 3 - damage. copper plating was stripped away revealing the zinc core beneath.
