17th-18th century AD. A round-section silver hoop supporting a discoid silver cell, inset carnelian cloison with incised calligraphic personal name 'Mohammad Kaan'. See Chadour, A.B. Rings. The Alice and Louis Koch Collection, volume I, Leeds, 1994, for discussion. 3.54 grams, 25mm overall, 19.34mm internal diameter (approximate size British S 1/2, USA 9 1/4, Europe 20.73, Japan 20) (1"). From the collection of a North West London gentleman; acquired in the 1980s. Fine condition.