KINGS of MACEDON. Antigonos I Monophthalmos. As Strategos of Asia, 320-306/5 BC, or king, 306/5-301 BC. AR Drachm (16mm, 3.6 g). In the name and types of Alexander III. Lampsakos mint. Struck circa 310-301 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; KI in left field, monogram below throne.