Antoninus Pius, AE31 medallion, Struck AD 138. Rome. 24.56 g.

IMP T AEL CAES HADR ANTONINVS AVG PIVS, laureate, draped bust right.
Salus standing right, leaning with her left hand on a garlanded altar inscribed SALVS and feeding a serpent coiled around a tree. 

Gnecchi 147.

With permission of Leu Numismatik Auction 2, lot 258, May 2018.