Watch List notes:

THRACE. Byzantion. Circa 387/6-340 BC. Tetradrachm (Silver, 22 mm, 15.09 g). ΠY / B Bull standing on dolphin left, right foreleg raised; below foreleg, monogram within wreath. Rev. Quadripartite incuse square with stippled quarters. Schönert-Geiss, Byzantion, pl. 30, XXIII. SNG Copenhagen -. Very fine.