Antoninus Pius, Sestertius, 154-155 AD, Rome.

ANTONINVS AVG PIVS P P, laureate head right.
LIBERTAS PVBLICA S-C, Libertas standing left, holding 
pileus and sceptre.
RIC 1064 var (denomination). In RIC only as a dupondius.

Courtesy of www.veilinghuiseeckhout.be, April 2011.