Istros, Thrace, AR Drachm, 6.64 g. 4th C. BC. 

Two male heads facing, the right inverted.
ISTRIH, sea-eagle left on dolphin, Y beneath eagle's tail. 

AMNG 411; Canarache 42

With permission of Heidelberger Münzhandlung Herbert Grün e.K. - Auction 64, Lot 325, Nov. 2014.