Trajan sestertius.  

Obv: Laureate bust right, IMP CAES NERVAE TRAIANO AVG GER DAC P M TR P COS V P P.
Rev. SPQR OPTIMO PRINCIPI SC, in ex AQUA TRAIANA; river god reclining left under arched grotto supported by two columns.  

RIC 463, Cohen 20, BMC 873.


Image contributed by Guido Courtois, Antwerp, Belgium.