Seleucid Empire, Seleukos I Nikator, Second satrapy and kingship, Silver Tetradrachm, 17.06g, struck in the name and types of Alexander III of Macedon, Babylon I mint. Struck circa 311-300BC, Obv: Head of Herakles right, wearing lion skin, Rev: Zeus Aëtophoros seated left; in left field, M below helmet; monogram below throne, Greek legend “BASILEOS ALEKsANDROU” with first word in exergue. About very fine, rare.