Watch List notes:

THRACE, Byzantion. Circa 387/6-340 BC. AR Drachm (17.5mm, 3.66 g). Heifer standing left on dolphin left; trident head below raised foreleg / Incuse punch of mill-sail pattern. Schönert-Geiss, Byzantion 712–32; HGC 3, 1387 corr. (trident head not noted; reverse type is either mill-sail or quadripartite square). Toned, scratch on obverse, off center on reverse. VF.

From the David J. Fleischmann Collection. Ex Superior (4 December 1998), lot 1054.