Antoninus Pius AE Sestertius. 

ANTONINVS AVG PIVS PP TRP COS IIII, laureate head right.
SALVS AVG S-C, Salus standing right feeding serpent coiled around 
altar and holding rudder on globe. 

RIC 784; Sear 4214 var (date)

With permission of Numismatik Lanz, Munich, May 2008.