Antoninus Pius Denarius. AD 145-161. 18.1 mm, 3.1 g. 

ANTONINVS AVG PIVS P P, laureate head right.
COS IIII, Felicitas standing left, holding capricorn
and caduceus. 

RIC 131 (but listed only as an aureus); Strack 164; RSC 250a; Sear -. 

With permission of Pecunem Gitbud & Naumann, Auction 12, Lot 529. Feb. 2014.