Marcus Aurelius, Aureus, Rome, 21mm, 7.18 g. AD 166-167. 

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

RIC 173; Calicó 1997; Cohen 883.

Owner's information withheld.