Tetradrachm of Ptolemy I, with the portrait of Alexander, Alexandria

Obv.: Head of the deified Alexander wearing an elephant headdress to r. with the mitra around his forehead, the ram's horn and the aegis around his neck. Small delta in the lion's skin ? Rev.: Athena striding to r., brandishing a shield in her left arm and holding a spear in her r.; in r. field eagle to r. To r. monogram A X and helmet; small countermark.