Caracalla, AR Denarius, 198-217 AD, Rome, 199 AD, 19 mm, 3.05g. 

IMP CAES M AVR ANTONINVS AVG, laureate, draped and cuirassed bust right.
IVVENTA IMPERII, Caracalla standing left in military dress, holding Victory on globe and spear, seated Parthian captive at his feet, supporting head with hand, wearing peaked cap and with quiver. 

RIC 20; BMCRE 115; RSC 115.

Sold on ebay by FLAN