Ca. 100-300 AD. A Roman silver ring of Henig type X with its characteristic broad shoulders tapering to the rear. The flat bezel is set with an oval-shaped panel inscribed with "I O M", which reads IOVI OPTIMO MAXIMO - "to Jupiter Best and Greatest". This inscription was commonly used in the Roman Empire to invoke the power of Jupiter, the most powerful of the Roman gods. This inscription was used on buildings, monuments, statues, coins, and other objects to honor Jupiter or to seek his divine protection and favor.Size: D: 17.35mm / US: 7 / UK: O; 11.09gProvenance: Private London collection; British art market 1990s.