I am puzzled by this. From the inscriptions and design, it appears to be a Seleucid tetradrachm of Antiochos X. It is too light and the wrong metal for this, however. Are there any Seleucid AEs that corresponds to this thing. Or is it just a fake tetradrachm? It may well be a fake, but the feel and fabric gives me an "ancient" vibe - especially the reverse, which is very sharp and "struck" looking. But I've been wrong plenty of times before. Any ideas? Seleucid Æ Tetradrachm? Antiochos X (c. 94-93 B.C.)? Antioch mint? Diademed head right / AΣIΛEWΣ ANTIOXOY EYΣEBOY[Σ] [ΦIΛ]OΠATOΡOΣ, Zeus Nikephoros enthroned left, holding sceptre. Date in exergue? sim. SNGIs 2790. (11.17 grams / 25 x 23 mm)