Compared with Wexlers examples and it seems relatively similar to the 1982 WDDO-005, yet a lot more prominent in then 2 of the date. That and that specific ddo says it's seen on large date copper, and doesn't mention large date Zinc. It doesn't look to me like mechanical doubling because of the split serifs under the top of the 2 and at the tail but it's only noticeable with the 2. Also for reference, any guesses on the grade based on the obverse?
If it's on a zinc planchet, it's coppercoins DDO-003 . http://www.coppercoins.com/lincoln/diestate.php?date=1982&die_id=1982p1do003&die_state=mds Or coneca DDO-002 . http://varietyvista.com/01b LC Doubled Dies Vol 2/1982PDDO002.htm Which are both the same ....
