Marcus Aurelius (161-180) AR denarius, Rome, AD December AD 172-December AD 273.
M-ANTONINVS-AVG TR P XXVI - laureate head of Marcus Aurelius right
Rev: IMP VI COS III - Mars standing right in full military dress, reversed spear in right hand, resting left hand on grounded shield.
RIC III 276
3,25 gr, 18 mm