Marcus Aurelius, Aureus, Rome, 21mm, 7.23 g. AD 166-167. 

M ANTONINVS AVG ARM PARTH MAX, laureate, cuirassed bust right
TR P XXI IMP IIII COS III, Victory walking left, holding wreath and palm.

RIC 172; Calicó 1996; BMC 444.

With permission of A. Tkalec AG, auction May 2010, Lot 150.