Istros, Thrace, AR Drachm. 5.55 g. 313-280 BC. 

Facing male heads, the left inverted.
ISTRIH above sea-eagle left on dolphin. Dot beneath eagle's
head, AP monogram beneath dolphin. 

Dima II-IV-2.

With permission of Gerhard Hirsch Nachfolger Auction 317, Lot 1548, Feb. 2016.