Abdera, Thrace. AR Tetradrachm, ca 473-449 BC. Magistrate Mandronaktos. 15.07 g. 

Griffin walking left, wings and right foreleg raised, star 
of eight rays to left.
EPI MA-NDRO-NAK-TOS around a raised square divided by lines 
into quarters, all within an incuse square.

May 182 (this coin); Nomisma III, pl. 2, 5 (ditto); AMNG II, 54/2, pl. II, 15 (ditto); Rhousopoulos 516; Prospero 221. 

Image courtesy of the New York Sale, the Prospero Collection.