I went to a vending machine the other day and got some change. In that change there was a quarter that i have never seen before. Its a 1987 d mint that is very dark, almost black. My camera is currently broken so I can not load any pics, but when i get it fixed i will upload. Any ideas on what thins might be would be much appreciated.
Lots of things can cause that, ammonia, bleach etc. There are any number of household chemicals that can turn coins black.
