Hmmm....I think it might be the beginning of a
Cud developing. Have a look at this and see what you reckon. All that's there is a big shiny cavity, but I would not be surprised if 2010 coins start to show up with a
Cud in that position.
$1 2010 C9v2 R2 Wannabe cud

Then there's this one which I have 4 examples of so it's definitely not a lam, between R2's chest and base of R3's tail. As above, I would not be surprised if 2010 coins start to show up with a
Cud in that position as well.
$1 2010 C6v2 R2-R3 Rat Tail

life is a mystery to be lived not a problem to be solved