So I can't make heads or tails of it it is an actual or it appears to be an actual mint mark. I typically just cast off most things is not being an actual legitimate error coin but this one I just had to put this out there and see I couldn't find anything myself that was relevant to help explain it so I thought I might rely on the great minds that dwell here within. Thank you! About the photo as you can tell there is some content inside of the circle my best guess is it ink, but I wouldn't go above my trueability and guarantee that. It is an indented and raised mark like that what you would find with a mint mark but that's why I'm here.
It appears Imo that your coin is just normal circulation wear on a copper Cent, FYI coins are minted not printed so from my understanding there would be no ink.
I mentioned the ink because Elsewhere on the coin it looks like there are spots of ink oh, I'm not sure if you'd see it in the picture though. I was just very taken aback by how it looks like a perfect o or the letter c even. And it raises up from the coin so I found that something bring here to discuss. But I thank you
If you take a coin that's been around for a hundred and seven years just imagine the stories It could tell. LOL
The raised metal is a sign of being hit with another object and dirt has got inside the dent and can't be worn off the coin and has stayed there for many years. Not an Error. IMO
If any surface takes a hit the excess material must move somewhere. Looks like a hit from a sharp object.
