Wexler match up same die scratches on the rev very on ob strong thickness on date lib iGwt i pretty sure ned opinions thanks
Willy - your coin looks nothing like WD001: http://www.varietyvista.com/01b LC Doubled Dies Vol 2/1976PDDO001.htm https://coppercoins.com/lincoln/diestate.php?date=1976&die_id=1976p1do003&die_state=mds Also, why are your pictures so grainy? One other thing, if you want to show decent pictures of the coin in question - take it out of the flip, or whatever you have it in. It gives off glare and does not do any justice to what you are trying to show. Just my 2 cents.
It's just how different doubled dies in a year are denoted. There are several different ways they are labeled depending on who is doing the labeling.