I'm new to this forum and I was just wondering if anyone here is searching and finding any of the double die reverse errors on the Minnesota
State Quarters. They are nicknamed "extra tree" errors and they have received much press in the "Numismatics News" and "
Coin World" periodicals. I have found a few and would be interested in sharing information I have on the 14, and counting, varieties that have already been attributed. I would also like to hear facts and ideas on how these errors could happen.
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