I know the pictures are under horrible magnification waiting to get the right tool for better quality pictures but here's an idea of the coin. Please see pics and leave and feedback
Doesn't look like either of these to me: http://coppercoins.com/lincoln/diestate.php?date=1983&die_id=1983p1dr001&die_state=mds http://coppercoins.com/lincoln/diestate.php?date=1983&die_id=1983p1dr002&die_state=eds
n what that is ,is a worn die deterioration on the reverse . common toward the end of the cycle of the die...