Just damaged and your seeing numismatic pederolia still 50 cents.Can't be an RPM because they stopped hand punching mint marks a little while earlier than your coin was minted
That's what I was thinking. It just doesn't look all nice and skinny like it should. The fact that it's so fat made me wonder if even though they stopped hand punching the mint marks in 1990 is it still possible to find post-1990 coins with two different mint marks???
All that you have shown of the coin looks to be in terrible shape. Why should you expect the mintmark to look any different?