MARCUS AURELIUS AS CAESAR, A.D. 139-161. AE Sestertius (27.13 gms), Rome Mint, A.D. 159-160. VERY FINE.RIC-1352b. Obverse: Bareheaded, draped and cuirassed bust right; Reverse: Mars advancing right, holding trophy and spear. Dark green-brown surfaces, with minor hints of red. Some roughness is noted, more notable on the reverse.