Not sure if a cud is the technical term for this. The "9" in the date appears to be filled in. Found it in my change the other day. I think its pretty common and worthless but neat though.
Treas: Are you sure? I thought a cud was from a broken die and extra metal gets through and shows up on the surface of the coin. It doesn't necessarily have anything to do with the rim. harryj. I try to find/buy coins like that and use them to fill the holes of my album. Why have a 1982 lincoln like everyone else has in their album when you can have one that has a story to tell?