This is a rare Centenionalis Constantius II coin, minted in Italy between 348-356 AD. The coin is made of bronze and has a diameter of 16-20mm. It features the image of the Roman Emperor Constantius II on the obverse side and a Gladiator on the reverse side. The coin comes with a Certificate of Authenticity (COA) for added assurance. This ancient coin is a valuable addition to any collection and a piece of history from the Roman Imperial period.