Commodus as Caesar, AR Denarius, struck under Marcus Aurelius, AD 175-176. 

COMMODO CAES AVG FIL GERM SARM, bare-headed, draped bust right.
DE GER-MANIS, Trophy, composed of helmet, cuirass, shields 
and spears with two captives sitting back to back at its 
base. 

RIC 607; BMCRE 642; RSC 77.

With permission of cngcoins.com, the AK collection sale, 610