Karkinitis, Tauric Chersonesos. ca. 300-250 BC. AE20, 5.25 g . Magistrate Kallippo-. 

Bearded figure seated left on rocks, holding axe or sceptre.
KALLIPPO beneath horse standing left, raising foreleg. 

Anokhin (Tyra and Black Sea) 413; SNG BM Black Sea 701; SNG Cop 2. 
Very rare.

With permission of cngcoins.com, auction 88, lot 274, Sep 2011