Kings of Macedon (temp. Philip III – Antigonos I Monophthalmos, ca 323-310 BC) AE Half Unit (14mm, 3.7 g) Uncertain mint in western Asia Minor Obv: Macedonian shield; boss decorated with head of Herakles facing slightly right, wearing lion skin Rev: Macedonian helmet; monogram to lower left, kerykeion to lower right.