KINGS of MACEDON. Demetrios I Poliorketes. 306-283 BC. AR Tetradrachm (31mm, 16.07 g, 4h). Amphipolis mint. Struck circa 290-289 BC. Diademed and horned head right / Poseidon Pelagaios standing left, right foot on rock, holding trident; monograms to inner left and inner right. Newell 116 (obv. die CXII). VF, lightly toned, traces of find patina.