THRACE, Byzantion. Circa 340-320 BC. AR Siglos (17mm, 5.27 g). Heifer standing left on dolphin left / Incuse punch of mill-sail pattern. Schönert-Geiss, Byzantion 1–235; HGC 3.2, 1389. VF, toned, struck with worn dies.
From the George Bernert Collection.