Marcus Aurelius, as Caesar under Ant. Pius. AV aureus. Struck AD 158-159. 7.15 g. 

AVRELIVS CAES AVG PII F, bare-headed, draped bust right.
TR POT XIIII COS II, Mars walking right, holding spear 
and trophy.

RIC 481a; BMCRE 994; Cohen 752; Sear 4773.

With permission of Dr. Busso Peus Nachfolger, April 2003.