The product is a Roman Empire AE3 / AE4 coin of Constantine I, also known as Constantine the Great, from the year 330 AD. This ancient bronze coin was minted in Italy and has a fineness of 0.85. It has been certified by NGC (Numismatic Guaranty Corporation), adding credibility to its authenticity and quality. Constantine I was a significant ruler of the Roman Empire, known for his conversion to Christianity and his role in the legalization of the religion within the empire.