Maybe that's a die break, and maybe the speckles in the upper left quarter of the arms are die rust, also specific to some variety, but there seems to be such encrustation on this coin that it's hard to say for sure. As to the variety, I don't see a dot after GEORGIVS, and I count seven strings on the harp, which narrows it down. I'm thinking perhaps Newman 8-H, which is a pretty rare variety, but I'm not completely convinced yet.