Antoninus Pius, 138-161. AE Sestertius 32 mm, 27.62 g. Rome, struck AD 153-154. 

ANTONINVS AVG PIVS P P TR P XVII, laureate head right.
LIBERTAS COS IIII, Libertas standing front, looking right, holding pileus in her right hand and sceptre. S-C across fields.

RIC 917a; Cohen 542. 

Sold by Gorny & Mosch auction 267, Lot 3655, Oct. 2019.