Marcus Aurelius Den "Mars"3.2gm. Marcus Aurelius Den "Mars"3.2gm. Marcus Aurelius AD 139-180 Silver Denarius Obv: M ANTONINVS AVG GERM SARM - Laureate head right Rev: TR P XXIX IMP VIII COS III - Mars advancing right, holding spear and trophy Rome mint AD Sept-Dec AD 175 = RIC 326 -Cohen 916