Marcus Aurelius. As Caesar, A.D. 138-161. AR denarius (18.2 mm, 3.26 g, 6 h). Rome mint, struck A.D. 140-144. AVRELIVS CAESAR AVG P II F COS, bare head of Marcus Aurelius right / PIETAS AVG, Priestly implements: knife, sprinkler, jug, lituus, and simpulum. RIC 424a (A. Pius); BMCRE 277 (A. Pius); RSC 451. VF.