I am guessing it is the reflection of UNTRY on the protective cover, which is re-reflecting off the surface of the coin...
Sorry this is the best pic I can get but the piece extends into the land mass area, about 1/4 the size coming out.
Looks like a little die crack to me, but a bigger picture would help. Because it could be a little scratch or even lint in the holder.
:whistle: LOL...I'm not the best at this picture thing...yet...new ones if you can click and enlarge them