Caracalla (198-217) AR Denarius (Silver, 3.19g, 19mm) Rome, 212
Obv: ANTONINVS PIVS AVG BRIT, laureate head right
Rev: P M TR P XV COS IIII P P, Salus seated left, feeding serpent coiled around altar from patera held in right hand, holding cornucopia in left.
Ref: RIC IV 196