Odd surface on presumably fake coin

I show here two coins from the same die pair. The high grade example is a Bulgarian replica of a Neapolis stater. The damaged example was sold as genuine on eBay this spring.

This replica shows up being offered from time to time as genuine. This new example surprised me because the damage is so strange. Here is a close-up:

Several things are going on. Pieces are broken off! There is strange cracking that follows the shape of the gorgoneion. There is a lot of wear both normal and strange looking.

Has anyone else seen a coin with this coin of surface?