Watch List notes:

THRACE, Byzantion. Circa 340-320 BC. AR Siglos (16mm, 5.34 g). Heifer standing left on dolphin left / Incuse punch of mill-sail pattern. HGC 3, 1389; SNG BM Black Sea 21–8. Toned, off center on obverse. VF.

Ex Thomas Bentley Cederlind Estate (Classical Numismatic Group Electronic Auction 392, 1 March 2017), lot 87.