Toning on a 2002 Silver Dollar ?

Hi, I recently got this one out of my drawer. What could cause this strange color ? Nothing sat on top of it and it was in a coin flip. Why is the other side not "infected" ?
Thanks for your input.
Thanks for your input.
0
Comments
Jeremy
PS- Nice coin and welcome to the boards!
Cheers
G
What should you do? Depends. If it tones really nicely, it'll gain value. If it tones ugly, it stays the same basic value (bullion).
Bob
Vietnam Vet 1968-1969
Anyway, I think I will keep this coin as is and see what happens to it.
Cheers
G
Go BIG or GO HOME. ©Bill
My icon is related to a weapon industry, but it happens to be the US Air Force.
After 35 years total service, I thought it was a good one to use. I'm not exactly crazy about it, though. It's a relatively new design to depict the modern Air Force, replacing the Hap Arnold insignia style.
BTW, welcome to the boards!
Bob
Vietnam Vet 1968-1969
Cheers
G