The product is a genuine Ancient Roman coin from the era of Constantius II, who reigned from 337-361AD. This coin, known as a Nummus, is composed of Billon and was minted in Rome during the Roman Imperial period. It is certified with certification number 6155451-170 and bears the image of Constantius II, offering a glimpse into the history of the Roman Empire during this time. This rare and valuable piece serves as a tangible connection to the ancient era of Rome and its powerful rulers.