Mercury does not stay silver on coins for a long period,, once it oxidizes it turns the most nasty black color you have ever seen.
There is no way for anyone to tell what is up with the coin without good pics, and even then the best you can hope for is insightful speculation.
Rick
There is no way for anyone to tell what is up with the coin without good pics, and even then the best you can hope for is insightful speculation.
Rick




















