Macedonia, Demetrius Poliorcetes. Tetradrachm; Macedonia, Demetrius Poliorcetes; Amphipolis, c. 289–288 BC, Tetradrachm, 16.60g. Newell-124. Obv: Diademed and horned head of Demetrius r. Rx: Poseidon standing l. with trident, placing r. foot on rock, monograms in outer l. and outer r. fields.Obverse in high relief; small mark in front of ear. Toned EF