Marcus Aurelius AR Denarius. 170-171 AD. Obv: M ANTONINVS AVG TR P XXV: Head of Marcus Aurelius, laureate, right. Rev: COS III: Mars, helmeted, naked except for cloak flying behind, advancing right, holding transverse spear in right hand and trophy, over left shoulder, in left hand - RIC III 231
2.6 g, 19 mm