The 2 main DDO are indicated by thicker lettering in liberty and the date, and I do not see any here. Check this page The IBERT. Jim http://www.coppercoins.com/lincoln/diestate.php?date=1941&die_id=1941s1do002&die_state=mds
I agree with thone I've seen. Them but so I'm looking at one md here? You can see it on LI great but I don't see shelving
I think what you see on the L and others is die deterioration where the edges and tight corners of the devices breaks off ( sometimes irregularly) and then the coin can have a sloped or crooked edges since since some of the die is missing rather than movement of the die itself. Jim