Ancient Roman sestertius coin of emperor Trajan. 30mm diameter and 20.8gms weight.
Trajan was Roman emperor from 98 to 117, one of the Five Good Emperors of the Nerva–Antonine dynasty. He was a philanthropic ruler and a successful soldier-emperor, who led the Roman Empire to its greatest territorial extent by the time of his death. He was given the title of optimus by the Roman Senate.