More than 1,350 years old!
This Gold Solidus is from the reign of the emperor Heraclius (610-641 AD). Heraclius was one of the greatest Byzantine imperators and founder of the Heraclian dynasty.
The obverse shows Heraclonas (left), Heraclius (center) and Heraclius Constantine (right). The reverse features a cross potent atop three steps. Two phrases are also shown on the reverse: "CONOB" which is an abbreviation of the Greek for "Byzantine coinage," and "VICTORIA AVGY."
This Gold coin weighs 4.35 g. You'll be hard pressed to find a coin superior to this example, which has been graded AU by NGC, with a perfect rating (5/5) for strike and 4/5 rating for surface. A very well preserved ancient Gold coin!