Commodus, AR Denarius, AD 187-188.

M COMM ANT P FEL AVG BRIT, laureate head right.
P M TR P XIII IMP VIII COS V P P, Salus seated left
by altar, feeding a snake out of a patera. 

RSC 544, RIC III 169, BMC IV 250, (2.6 gm.

With permission of Roma Numismatics Ltd. Dec. 2014