Marcus Aurelius AE dupondius, struck as Caesar under Antoninus Pius. AD 145. Rome. 29 mm; 22.2 g. 

AVRELIVS CAESAR AVG PII F COS II, bare head right. 
S-C across fields, Minerva standing fully front, holding spear and shield, owl at foot left.

RIC 1265 (Pius); Cohen 575; BMCRE 1800 note. 

With permission of Roma Numismatics Ltd Live Auction 4, Lot 2777, Sept. 2012.