Not sure. If it looks the same in the same location on several coins,I would think die gouge.
EDIT; ff damage is a gouge on the die,so I think the mark could show on several coins minted from that damaged die.
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
Edited by John1
01/08/2018 1:52 pm