Heres another wheat Cent with what looks like either a strike through or a delamination error on the top of it's wheat stalk. I'm not sure what the dark colored lines on both sides of the coin are? Anyone have any ideas?
I wish I could help you out but I have looked at that coin and to be honest I can't tell you what it is. It appears to be a lamination error of some sort but that just a guess. IMO Dave
Looks like a lamination error that went into the rim. The black looks like a stain. Wait for @paddyman98 to chime in. He collects errors.