Tetradrachm of Demetrios Poliorketes of Macedonia, Amphipolis

Obverse: Head of Demetrius r., horned and diademed. Reverse: BASILEWS DEMETRIOU Poseidon l., resting foot on rock and leaning on trident; to l., symbol (trident r. with sideways upsilon crossed by small vertical line in center); to r., symbol (D with small circle at top).