Any idea of what caused this? Maybe a reaction with some chemical? The spot is incuse and the scratches inside the spot are parallel. Is this some possible error I haven't researched yet or PMD?
My first thought was a die clash, but now I think it might be from a chemical. It appears that this chemical got on the coin, than someone attempted to remove the substance using an abrasive object such as sand paper. Just my two cents! -Mike
