PTOLEMY II I think PTOLEMY II PHILADELPHOS AR Tetradrachm OBVERSE: Diademed head of Ptolemy I right, wearing aegis around neck REVERSE: ΒΑΣΙΛΕΩΣ [ΠΤΟΛΕΜΑΙΟΥ], eagle standing left on thunderbolt, to left, club surmounted by Tyre monogram Tyre 285-260 BC 25 mm., 14.14 grams Svoronos 644; SNG Copenhagen 482-3 CPE 561; ex. JAZ Numismatics
Definitely Ptolemaic, and definitely a silver didrachm (based on the weight shown on the scale). Ptolemaic silver (and bronze!) attributions are not easy. But I feel pretty sure it is Ptolemy VI. Compare yours to: https://www.acsearch.info/search.html?id=14821842 & https://www.acsearch.info/search.html?id=15143793 & https://www.acsearch.info/search.html?id=12805548
