Marcus Aurelius, AE sestertius. Rome, struck 174-175 AD.

Obverse: M ANTONINVS AVG GERM TR P XXIX, laureate head right 
Reverse: IMP VII COS III, Concordia standing left,
holding standard and short caduceus. S-C across fields.

RIC III 1138; Cohen 337. 

Courtesy of Noble Numismatics Pty Ltd.
www.noble.com.au. Auction November 2010, lot 5545.