For sale from private collection this beautiful artifact struck for Roman emperor Antoninus Pius. ( silver Denarius ) Antoninus Pius was Roman emperor from 138 to 161. He was one of the Five Good Emperors in the Nerva-Antonine dynasty. Born into a senatorial family, Antoninus held various offices during the reign of emperor Hadrian, who adopted him as his son and successor shortly before his death. Size : 18 mm