Marcus Aurelius AE Sestertius. Struck 163-164 AD.

Obverse: M AVREL ANTONINVS AVG -  ARMENIACVS P M,  radiate head right.
Reverse:  TR P XVIII IMP II COS III S-C, Mars standing 
right holding spear and resting hand on shield.

RIC 861, Cohen 838.

With permission of Roma Numismatics, December, 2009.