Hey guys I have a 1984 D Jefferson here and he looks to have an S on the obverse where it shouldn’t be. I was thinking maybe a die clash but I don’t see an s that would line up in that spot. Maybe a misplaced S mint mark...? That would be awesome lol.
Interesting don't think its a dropped letter my best is to say man made/counterstamp etc- damage,better pictures would help.
Looks like an engraving toolbit on a Dremel skipped and bounced a bit, and then someone rubbed it to try and dull it down and failed
I pulled this coin from a set so unless someone from the mint did that to the coin it’s not man made.
Are you sure it was a mint set and not an aftermarket set of some kind? It looks a bit beat up for a mint set coin.