Watch List notes:

Thrace, Byzantion. 416-357 B.C. AR siglos (17.2 mm, 5.31 g, 12 h). ΠΓ, Heifer standing left, dolphin below / Quadripartite incuse square, mill-sail pattern. Multiple banker's marks. SNG Cop 476; BMC 1; SNG BM Black Sea 21. VF, scarce.