Watch List notes:

BITHYNIA, Kalchedon. Circa 367/6-340 BC. Drachm (Silver, 14mm, 3.76 g), Rhodian standard. KAΛ[X] Bull standing left on grain ear; to left, kerykeion and ΔA monogram. Rev. Quadripartite incuse square. HGC 7, 511. SNG Black Sea 104. SNG von Aulock 487-488. Well struck, with an old cabinet toning. Struck slightly off center, otherwise, good very fine.