I found this 2016 D LSC and the M in the designers initials stuck out. It is the same height as the JF but wider than normal. I think it may be grease related but most grease filled devises show a little of that in the surrounding fields with a little bit of haziness. A hit maybe as the F looks as if it could have had something pinched it halfway up. For comparisons sake the last two pics are that of a normal reverse of a 2016 D LSC reverse. I cant see one devise being doubled and the rest aren't but I have been wrong many times. Insight and thoughts please.
Thank you guys for your insight. Again, my initial thought was grease but there was no haziness around the devises or fields which help me identify greasers on Shield cents. I also found it odd that only one devise was affected.