Marcus Aurelius. A.D. 161-180. AR denarius (18.31 mm, 3.46 g, 5 h). Rome mint, struck A.D. 166-167. M ANTONINVS AVG ARM PARTH MAX, laureate head right / TR P XXI IMP IIII COS III, Providentia standing left, holding scepter and wand over globe. RIC 170; BMCRE 439; RSC 881. VF, rough.