Istros, Thrace, AR drachm. 18mm, 5.96 g. 313-280 BC.

Facing male heads, the right inverted.
ISTRIH above sea-eagle left on dolphin. Dot beneath eagle's tail, Delta T monogram beneath dolphin. 

Dima II-IV-8. 

With permission of Numismatik Naumann, March 2016.

If you came here from a search engine: To view image, 
simply replace .txt with .jpg in your browser