I have a Sacagawea dollar coin but I think it might be toned. Tell me what you think and if it is does it bring up or down its value?
@Joey Coins Being that 2000 was the first year for the manganese-based Sac dollar, you should also be aware that many of the circulated coins turned a "puke" greenish-brown. It was thought that this occurred due to an improper wash/rinse of the blanks. I'm not sure if that was actually the case, but it is all that I recall about the controversy. Chris