Istros, Thrace. AR drachm, 18 mm, 5.52 g. ca 4th Century BC. 

Facing male heads, the left inverted.
ISTRIH, Sea-eagle left, grasping dolphin with talons; I beneath wing, A beneath dolphin.

AMNG 435 (1); Dima I-III-18.

With permission of Savoca Special Auction Jan 2020, lot 66. Jan 2020.