KINGS of MACEDON. Antigonos I Monophthalmos. As Strategos of Asia, 320-306/5 BC. AR Tetradrachm (27mm, 16,76 g). In the name and types of Alexander III. Sardes mint. Struck circa 318-315 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; star in left field, monogram below throne.