An antique late Grand Tour 23k gold coin reproduction referring to a replica of a gold solidus that was issued during the reign of Constantius II, who was a Roman Emperor in the 4th century. The obverse features a bust of Constantius II, pearl diademed, draped and cuirassed. The reverse shows Roma, helmeted, draped, enthroned front, and Constantinopolis, draped, enthroned left, head left, supporting a shield. Grand Tour was from the 17th to early 19th century custom of a traditional trip through Europe, with Italy as a key destination, undertaken by upper class young Europeans. Weight: 3.5 g. Historical Coins And Numismatic Collectibles.