This coin arrived today, from MA Shops. It is a billon tetradrachm of Elagabalus (12.8 grams). The vast majority of his tetradrachms were minted in Antioch. This coin has the star mint mark used for Antioch, but there is an additional mark to the right, which appears to be a three pointed symbol of some sort. Could this additional symbol denote another mint, or is this coin a variation from Antioch? Thanks
I agree with @Victor_Clark. That's the eagle's other foot. The details are just a bit smooshy (that's the technical term, FYI).
Thanks. So, it's probably an engraving error or a sloppy strike. My guess, then, is that the engraver started engraving the foot to the right and realized that it would not match the leg in terms of angle, leaving a foot next to the star. That's my theory.