Image rights: wildwinds.com Ptolemaic Egypt, Ptolemy II, Philadelphos, AR tetradrachm, 13.89 g. Diademed head of Ptolemy I right, wearing aegis. BASILEWS PTOLEMAIOY, Eagle standing left on thunderbolt, wings closed. PT and AS monograms in left field. Svoronos 388; BMC 34; SNG Cop. 524. Generic type Sear 7771.