300 A.D. Ancient Roman Silver Argenteus Coin, Emperor Diocletian, NGC Choice AUA small silver argenteus coin produced during the Roman Empire under the powerful Emperor Diocletian, sometime between 284 305 AD. The coin has very light wear, an extremely strong strike, is well centered, and has light golden toning on both sides. The coin measures 18mm in diameter, about the size of a dime. The obverse side of the coin features a portrait of the emperor, while the reverse features Diocletian and his three partner emperors making a