Istros, Thrace, city issue: 4th-2nd Century BC. AE16mm (4.22 gm). 

O: Horned head of the river-god Danube, facing three-quarters to right. 
R: ISTRI, Eagle on dolphin left. 

SNG BM. 260. 
VF. $475.

With permission of Tom Cederlind, auction 150, March 2009.