Seeing as the spot on the OBV and REV coincide, this looks like someone put the coin onto a hard flat surface and used some sort of punch with a hammer to make the mark. The punch indented the surface and the design on the REV was flattened against the surface un the process.
Post mint damage. Damaged coin.
How much squash could a Sasquatch squash if a Sasquatch would squash squash?
Download and read: Grading the graders
Costly
TPG ineptitude and No FG
Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2