Late 20th century AD. An ellipsoid carnelian plaque with three lines of incised inscription from Koran, the Al Kafirun verse, and linear border, set into a later silver ring. 24.54 grams, 30.95mm overall, 19.74mm internal diameter (approximate size British U 1/2, USA 10 1/4, Europe 23.15, Japan 22) (1 1/4"). From the family collection of a Hampstead gentleman; formerly acquired in the 1980s. Very fine condition. A large wearable size.