This ancient Greek coin weighs 14.05 g. The reverse seems just fine, but the obverse ( possibly Alexander) seems to have a black grayish layer or maybe rust on the head and part of the eye. The coin looks real silver white. Could it be a fake? Please assist me also with ID. Any value ? Charles
Though I couldn't offer you a positive identification or authentication, it appears to be a Greek tetradrachm minted under Philip I. Nothing shouts fake to me with your coin, and the odd surfaces is possibly a form of corrosion.
Agreed, looks to be Seleucid Kingdom, Philip I Philadelphos, 95 - 83 B.C A silver tetradrachm. Looks real to me also. Very common, in that condition, maybe $20 or so.
Later Seleucid. Because the shape of the nose i would think possibly Antiochos VIII Grypos. edit: but now looking at Philip specimen, he also had this family characteristic.