Feels like post-mint damage to me as well. Welcome to CT.
I think the first two characters of the inscription says Ming dynasty in China, 1368-1644 AD. Unsure of third character. Fourth character looks...
This is currently my oldest coin (still waiting for my Lydia third stater). An archaic Attica Owl tetradrachm. Off-centered, and therefore within...
Looks like Faustina II from both the hairstyle and the obverse legend. Nice pickup.
Separate names with a comma.