Byzantion, Thrace. 340-320 BC. AR Drachm or Siglos. 16.5 mm, 5.28 g. PY, Cow standing left, dolphin below Incuse square of "mill-sail" pattern. Sear 1579; SNG BM Black Sea 21; SNG Cop 476; BMC 1. With permission of Agora Auctions - Numismatic Auction 65, Lot 11, March 2017