THRACE. Byzantion. Ae (3rd-2nd centuries BC). Alliance issue with Kalchedon.
Obv: Veiled head of Demeter right.
Rev: BYZAN / KAΛXA.
Poseidon seated right on rocks, holding aplustre and trident; monogram to inner right.
Schönert-Geiss 1271-82; SNG BM Black Sea 83; CNT online 3604-5; Numismatik Naumann 46, lot 54.
Condition: Near very fine.
Weight: 8.85 g.
Diameter: 26 mm.