THRACE, Byzantion. Circa 387-340 BC. AR tetradrachm (14,41 g). ΠY, Bull advancing left on dolphin, monogram below raised foreleg / Quadripartite incuse square with stippled quarters. A clear and attractively toned specimen., Schönert-Geiss, Byzantion, 677-680, HGC 3.2, 1386, Grade: 1+, From the Dr. E.O. and F.M. Halliwell Collection; Ex Baldwin's Auctiones Ltd, auction 68, 28.9.2010, lot 3384