Hexassarion - Maximinus I and Maximus caesar [Φ]ΛΑYΙΟΠΟΛЄΙΤωΝ / [ЄΤ ΓΞΡ]; Flaviopolis

One interesting fact about this coin is that it features the first known use of the Greek letter Φ (phi) in a Roman imperial coinage. The letter Φ is used in the mintmark [Φ]ΛΑYΙΟΠΟΛЄΙΤωΝ, which represents the city of Flaviopolis, where the coin was minted. This suggests that the coin was produced during a time when Greek was still widely spoken and used in the Roman Empire, particularly in the eastern provinces like Cilicia, where Flaviopolis was located.