Hello, looking for a bit of guidance, knowing nothing about coins
Clearing out an old desk, found what seems to be a George III 1804 dollar. It looks like all the examples googled, is a bit worn, but, unlike all the photos I've seen, it has "M C" stamped on the side with king's head. M one side of the head, C the other. The letters are ridged in the same way as the band that says "five shillings" is on the other side.
Might it be real?
thanks for any thoughts