Today I stopped in a random bank and asked for halves. They had $6 which they sold to me happily. One of them was a 1967 so I was happy. It was very greenish. I did not notice it right away. This is not the first time I have gotten a greenish half. It always seems to happen when I get one from a teller's drawer and not from a roll. I am wondering is it green because 40% halves have such a high copper content or is it because it has been circulating for a while and come in contact with lots of hands. To look at this coin from the side it looks alot like a normal clad. I always check dates. I have found a few silver halves in rolls I know that were already searched or someone else's dump rolls. These silver halves are always dirty and worn, but it's not the side that makes them silver it's the date!
I have got a couple of these that have a green tinge. Not sure what its from but I believe it is due to the alloy reacting some weird way with the environment. Since this alloy was only made for halves for 6 years, no one really has that much knowledge as to how it reacts with different environments. Eh, its still 40% silver. Looks like a future candidate for the melting pot.
Haven't found any that were green, but I have gotten a lot of them that have some very funky colors on them. Usually a purple / brown tone to them! lol I was wondering if water damage could do that to them? Reason I say that, they were from a bank that had been flooded out some years back.
