Assos, Troas, AR obol, 7mm, 0.23 g, ca 500-450 BC. 

Griffin right.
No legend, lion’s head right within incuse square. 

BMC 3. 
Good VF, porous. 

287, Lot: 126. Estimate $150.
Sold for $190. 

with permission of cngcoins.com, Sept. 2012.