Marcus Aurelius, AE As 174-175 AD, 

M ANTONINUVS AVG TR P XXIX, laureate head right
IMP VII COS III S-C, river god Tiber reclining left, resting 
hand on prow of galley, leaning on jug from which waters flow.

RIC 1142; Cohen 348; Sear 5065
  
Courtesy of TimeLine Auctions (www.timelineauctions.com), Jul, 2012