I bought this very worn copper coin. The ruler I think is Holy Roman Emperor Charles V. he seems to be wearing a Christmas paper crown.

Remember that possible $1 Federal Reserve Note I asked about, that had that possible light security thread appearing to come down vertically, on the right side? Turns out it was a merely a mark from a roller, when the BEP shoots those 32-note sheets through the machines at near lightning speed.

I had taken it to a couple of older currency dealers at the recent Baltimore-Whitman show. They recognized it right away.