Greece, Macedon, KINGS of MACEDON. Demetrios I Poliorketes. 306-283 BC. AR Tetradrachm (29mm, 17.40 g, 9h). Amphipolis mint. Struck circa 289-288 BC. Diademed and horned head right / BASILEWS DHMHTRIOU, Poseidon Pelagaios standing left, right foot on rock, holding trident in left hand; monograms to outer left and right. Newell 124 (obv. die CXXVIII); SNG München 1050; SNG Alpha Bank 952.