19th century AD. A square bezel of cannetille work with central knop, twisted hoop. 3.16 grams, 23.11mm overall, 19.98x16.67mm internal diameter (approximate size British Q, USA 8, Europe 17.49, Japan 16) (1"). From a Suffolk family collection; by descent from the vendor's father, who formed his collection prior to 1990. [No Reserve]