19th century AD. A rectangular carnelian cloison with incised calligraphic Nasta?l?q script, rosettes and tendrils, set in an openwork cell with scale detailing, D-section hoop. Accompanied by a museum-quality impression. 21 grams, 28mm overall, 18.0mm internal diameter (approximate size British P, USA 7 3/4, Europe 16.55, Japan 16) (1"). From the family collection of a Hampstead gentleman; formerly acquired in the 1980s.