Marcus Aurelius, AR denarius, Rome, 171 AD. 17.62 mm. 

M ANTONINVS AVG TR P XXV, laureate head right.
COS III, Mars, naked, walking right, holding spear and trophy.

RIC III 231; RSC 126; Sear 4886.

With permission of TimeLine Auctions (www.timelineauctions.com), February, 2015