Sorry i post every coin i think has an error and sometimes just to get more information from you the experts, i'm beginner and i keep learning from you a lot of things Thank you
This is one of those cracks that "could have" led to one of those cool 50% cuds we see once in a while on Lincoln cents. This seems to be an area of weakness.
That's pretty cool. I wonder how much further it progressed until a mint employee finally noticed it and it got switched out.