Karkinitis, Tauric Chersonesos. ca. 300-250 BC. AE20, 5,55 g. 

KERKI, Bearded figure seated left on rocks, holding labrys or dolphin-tipped sceptre.
IST beneath horse left.

Anokhin (Tyre and Black Sea) 418. 
Very rare.

With permission of cngcoins.com, auction 257, lot 108, June 2011.