Marcus Aurelius (161-180). AE Sestertius, 163-164 AD. Obv. M AVREL ANTONINVS AVG ARMENIACVS PM. Laureate head right. Rev. TR P XVIII IMP II COS III SC. Mars standing right, holding spear and resting left hand on shield. RIC 861. AE. g. 22.69 mm. 30.80 Green-brown patina. GoodVF/VF.