Caracalla AR Denarius, 206 AD. Obv: ANTONINVS PIVS AVG: Bust of Caracalla, laureate, draped, right. Rev: PONTIF TR P VIIII COS II: Mars, helmeted, in military attire, standing left, resting right hand on shield and holding spear in left hand - RIC IV 83b
3.01 g, 20 mm