I was out metal detecting today, ground was almost still to hard, but I managed. I found this coin, I live in mass and I have a few coins from the 1700, but this one, I think is older. It is about the size of a dime, irregular shape, concave, and it's very thin. One side is completely smooth. The pic shows the only detail, I beleive it's shows a french lily, encircled in dots, and it may have a crown above the lily. Can anybody identify this coin???