KINGS of THRACE. Rhoemetalces I, with Augustus. Circa 11 BC-AD 12. 
AE 23mm (9.57 g, 6h). 

Conjoined heads of Rhoemetalkes and his queen Pythodoris right
Bare head of Augustus right; vase before. 

RPC I 1712; SNG Copenhagen 1190; Jurukova, TC 94. VF, rough black patina.

From the J.P. Righetti Collection, 6804. 

Used with permission of CNG (cngcoins.com)