There are also one in each of the bows on the ribbon. Im not sure about 2 or 3 more but acetone could clear things up.
Welcome mitch721 Thanks for the pics. It looks like a good strong struck of the coin. I am guessing some of the greenish crud is environmental damage. Yes the hole could be planchet defect, or damage. I am not sure ANACS slab, even at their discount specials of $10 for 10 or more coins at one time is really worth it. Maybe just an Air-Tite holder. When you post pics you can always hit the full image button. That give us a big pic to view right away.