THRACE, Byzantion. Circa 411-386 BC. AR siglos (5,33 g) and half siglos (2,51 g), Persic standard. 'ΠΥ, Heifer standing left on dolphin left / Stippled quadripartite incuse square. Attractive cabinet toning on both coins. TWO COINS IN LOT., SNG Cop. 475-7 and 478, SNG BM Black Sea 21-8 and 36-41, Grade: 1+ and 1+/01, Both purchased from Numisma Mynthandel in 2010 and 2011