Commodus, as Caesar. 175-176 AD. AR Denarius (3.13 g). 

COMMODO CAES AVG FIL GERM SARM, bare-headed and draped bust right.
PIETAS AVG, knife, sprinkler, jug, lituus, and simpulum. 

RIC III 613; BMCRE 647; Szaivert 341-14/13; RSC 401; Sear 5546. 

Used by permission of CNG, trading as historicalcoins.com, auction 35, lot 63836, August 13, 2001.