Holmoi, Cilicia, ca 4th century BC. AR Obol (0.65g). 

Obv: Helmeted head of Athena right
Rev: Bearded male head left. 

SNG Lev. 36 (this coin); SNG France -; SNG von Aulock -.

CNG Auction 66, May/2004, lot 535 
Sold for $100 + commission

with kind permission of Classical Numismatic Group - 
www.cngcoins.com, April 2010.