Marcus Aurelius (161-180 AD). AE Sestertius. 25.45 gr. - 33.1 mm. Roma (Rome), 168-169 AD. O:\ M ANTONINVS AVG TR P XXIII, laureate head to right. R:\ SALVTI AVG COS III / S - C, Salus standing left, holding patera and scepter; altar to left, from which rises serpent. Cohen 544. RIC 964. XF