Always post a full photo of both sides of your coin in question along with a closeup.
Yokozuna is probably right in saying it has been exposed to acid. We see this fairly often in this Forum.
Acid will eat the copper core away before the nickel plating leaving an indented ridge around the coin.
Yokozuna is probably right in saying it has been exposed to acid. We see this fairly often in this Forum.
Acid will eat the copper core away before the nickel plating leaving an indented ridge around the coin.























