I have a series of 18 of these coins all in different degrees of damage to the back of the neck and front of the neck of the image of lincoln. Until recent retirement I worked in forensics and the first coin I examined looked as if Lincoln had been shot in the back of the head, but in real life the bullet never exited, (sorry if this is too graphic). I nick named it the asasination series. I know of six (6) other of these coins in circulation but I think I have the bulk of them from a 25 dollar box of pennies I was searching through. I sent some out for attribution and got a couple of different opinions as to what caused it and why there are so many. I also have my own theory as to how this could happen because I have worked in the Public Sector before. My question is, what do I do with the series I have. I thought of having them graded because there is no after mint damage to the coins but it seems expensive. They are unusual.
Interesting. I've not seen something like that before. My first guess would be some kind of strike through but I'm really not sure. Also, I do not believe it would be worth the cost of grading. @paddyman98 have you seen something like this before?
It is mint damage to the die, possibly from feeder fingers or such. These marks show up at times, but these are slightly different in that some seem closer to the edge. Not worth getting graded, but for a cent apiece, keep for the time being.