Watch List notes:

BITHYNIA, Kalchedon. Circa 367/6-340 BC. Drachm (Silver, 15mm, 3.80 g), Rhodian standard. KAΛX 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. A particularly nice example. Well struck and attractively toned. Struck on a short flan as usual, otherwise, extremely fine.