Byzantine coins were the currency of the Byzantine empire. Originally there were two types of coin, the gold solidus and bronze nummi, but a silver stavrata and copper noummion were later issued.
Each of the 127 types of Byzantine coins represents a Byzantine emperor. This currency began after the fall of Western Rome. The nummi was issued in multiples such as five, 10 and 20 nummi, as well as the 40 nummi, often referred to as a follis. In the seventh century, the follis became the only issued bronze coin. The gold coin remained the standard until the 11th century.