Kevbir: Welcome to the forum. Some of our ancients specialists will be by soon and they will let you know.
I believe it to be one of the Ptolomey's from ancient Egypt, which one I can't help with at this point but maybe this will set you on the right track Richard
Perhap's this link will help:thumb: http://www.snible.org/coins/hn/egypt.html State: Egypt</B> Ruler: Name: Ptolemy II</B> OBV Description: Diademed head of Ptolemy I r. REV Description: Eagle on thunderbolt.</B> REV Inscription: PTOLEMAIOU - SVTHROS</B> REV Secondary Inscription: PT</B> Period: Second quarter 3rd cent. -275 -250</B> Die Axis in numbers: 12 Die Axis in degrees: 0 Metal: AR Denomination: Tetradrachm Weight: 13.8</B> Wear: Not worn Cast or Struck: Struck</B> Reference: Title: Ta nomismata tou kratous twn Ptolemaiwn Type: Monograph Auth/Ed: Svoronos, J.N. Publisher: P.E.Sakellariou Publication Place: Athens Publication Year: 1904 Cat. No: 388</B> </B>ID: SNGuk_0601_1184 Rhubarb
Size (in millimeters) and weight (in grams) are extremely important in attributing these coins. Yes, it is Ptolemaic Greek. But its certainly not the one that Rhubarb posted. (Good try, though!) The reverse legend likely reads PTOLEMAIOU BASILEWS and the obverse definately shows Zeus.
There are a lot of different types of this coin, I cant see the reverse well, if you give a larger picture it would be easier to be sure who this was issued under.
