Watch List notes:

Thrace, Byzantion in alliance with Kalchedon Æ 25mm. 3rd century BC. Veiled head of Demeter to right / Poseidon seated to right, holding aphlaston and trident; ΒΥΞΑNTI to right, ΚΑΛΧΑΔΩ to left. HGC 3.2, 1428. 10.12g, 25mm, 12h.

Near Extremely Fine. Very Rare with this legend.