Antoninus Pius. AE Dupondius. 19-20mm; 11.03g. AD 145-161. 

ANTONINVS AVG PIVS P P TR P COS IIII, radiate head right.
SALVS AVG, S-C across fields, Salus, draped, standing left
by altar, holding rudder on globe and feeding a serpent coiled 
around the altar.

BMCRE 1743 footnote; Cohen 719; RIC 810.

With permission of cngcoin.com, the AK Collection.