Coin as found

The Roman Byzantine Empire existed from approximately 395 CE—when the Roman Empire was split—to 1453. It became one of the leading civilizations in the world before falling to an Ottoman Turkish onslaught in the 15th century.

The aureus was the primary gold coin of the Roman Empire and was introduced in the late republic during the time of the imperators. The aureus carried a fixed value of 25 denarii and its larger value would ease the burden of money transfers during times of war.