Antoninus Pius (138-161) AR Denarius (Silver, 2,60g, 18mm) Rome, 148-149
Obv: ANTONINVS AVG PIVS P P TR P XI, laureate head right.
Rev: COS IIII, Salus standing facing, head left, holding patera and rudder on globe, feeding serpent entwined around altar.
Ref: RIC 167