Ionia, Erythrae, 5th Century BC, AR hemiobol or obol 0.68g. 

Obv: laureate head of Herakles right, 
Club and bowcase. Name illegible.

cf SNG Lewis 923 (diobol, magistrate Pythermos); Warren 1121 
(diobol, magistrate Aitor..); Boston 1846 (ditto).

Seller hjb-ancientcoins, ebay, June 2005.