THRACE, Byzantion. Circa 387/6-340 BC. AR Tetradrachm (22mm, 14.99 g). Bull stepping left on [dolphin left] / Quadripartite incuse square with stippled quarters. Schönert-Geiss, Byzantion, Group I, 650–8 var. (unlisted dies); HGC 3, 1386. VF, toned, light scratches, some granularity.