Thracian Islands, Thasos, AR Tritemorion or hemiobol, Circa 411-340 BC. 8 mm, 0.37 g

Obv: Bearded head of a satyr right 
Rev: QA-SI, two dolphins swimming right and left

Sear SG 1756; Le Rider, Thasiennes, 12; SNG Cop 1033.

With permission of Leu Numismatik AG - Web Auction 1, Lot 168, June 2017