Marcus Aurelius. A.D. 161-180. AE as (25.5 mm, 8.38 g, 1 h). Rome mint, struck A.D. 174-175. Rare. M ANTONINVS 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; BMCRE 1498. Fine, black patina.