Commodus, as Caesar, AR Denarius, AD 166-177. 18 mm, 3.18 g. Struck Rome AD 177. 

IMP CAES L AVREL COMMODVS GERM SARM Laureate, draped and cuirassed bust right. 
TR POT II COS, Salus standing left by altar, holding patera, feeding a serpent rising from the altar, and sceptre.

RIC 626 (aurelius); BMCRE 756; Cohen RSC 741.

With permission of Leu Numismatik AG - Web Auction 15, Lot 1838, Feb 2021