Euboia, Histiaia, 3rd-2nd centuries BC. AR Tetrobol (15mm, 2.11g). 

Wreathed head of the nymph Histiaia right, wearing earring,
necklace and ivy wreath.
ISTIAIEWN, Nymph seated right on stern of galley; thunderbolt on 
side of ship; DI below. 

BMC 110; SNG Copenhagen 533.

With permission of London Ancient Coins, Oct. 2013.