An ancient bronze coin, its design closely matches commemorative coins minted in the late Roman period (specifically during the reign of Emperor Constantine the Great and his successors, around the 4th century AD). The obverse shows a profile head wearing an ornate war helmet, a traditional style often used to represent the personification of the city of "Rome" (Urbs Roma) or the city of "Constantinople" (Constantinopolis) to celebrate the founding of the new capital. The reverse of an ancient bronze coin, its design dates back to the ancient Roman (Hellenistic) period, specifically to the Kingdom of Macedon (such as coins minted during the reign of King Philip V or Roman protectorates of Macedon). Prominent design details shown in the image: Club of Herakles: This is the prominent horizontal line dividing the coin in the middle. Roman inscription: Letters are distributed above and below the club, which usually meant "MAKE/ΔONΩN" (Macedonians). Oak Wreath: This is the circular botanical frame surrounding the entire design. Due to severe corrosion and oxidation on the coin's surface, some fine letters and monograms have faded.