Olbia, Scythia, AR stater, Dynast Eminakos, ca. 450-425 BC., 11.50g. 

[EMINAK]O , Herakles, naked and wearing lionskin headdress, 
kneeling right, stringing a bow. 
Four-spoked studded wheel of ‘solar-disk’ design, four 
dolphins swimming around, all within incuse square 

SNG BM Black Sea 358; SNG Stancomb 342; Rosen 147; Jameson 2536.

Very rare. 

With permission of Prospero Auctions 217.