THRACE. Byzantion. Circa 387/6-340 BC. Tetradrachm (Silver, 23 mm, 14.88 g), Rhodian standard. ΠΥ Bull standing left on dolphin left, right foreleg raised; in field to left, monogram of AY within wreath. Rev. Quadripartite incuse square with stippled quarters. HGC 3.2, 1386. Schönert-Geiss, Byzantion, 707-9. SNG BM Black Sea -. Very rare with this monogram. Harshly cleaned, otherwise, good very fine.