MARCUS AURELIUS AS CAESAR, A.D. 139-161. AR Denarius, Rome Mint, ca. A.D. 140-144. NGC Ch EF. Flan Flaws. RIC-424A (Pius); RSC-451. Obverse: Bare head right; Reverse: Implements of the pontificate. A highly original example with a beautiful portrait of Marcus Aurelius as a youth. Surfaces are bright and attractive, though a pair of flan flaws are noted on the rims.