Marcus Aurelius. A.D. 161-180. AR denarius (18.0 mm, 3.11 g, 12 h). Rome mint, Struck A.D. 164. ANTONINVS AVG ARMENIACVS, laureate head right / P M TR P XVIII IMP II COS III, Mars, wearing helmet, standing right, holding inverted spear and resting left hand on shield. RIC 91; BMCRE 261; RSC 468. VF.