Greek
THRACE. Byzantion. (Circa 3rd century BC)
AE Bronze (25.5mm, 9.85g)
Veiled head of Demeter right, wearing grain wreath / BYZAN / KAΛXA.
Poseidon seated right on rocks, holding aphlaston and trident; monogram to inner right.
SNG BM Black Sea 83; HGC 3.2, 1428.