MEDIEVAL ISLAMIC MAGICAL SILVER RING Ca. AD 1400 - 1500. A magical silver ring with a flat section round hoop enlarged on the shoulders to form a square bezel adorned with a grid and engraved letters inside of the spaces. Size: D:17.12mm / US: 6 3/4 / UK: N; Weight: 9g. Provenance: Property of a London Ancient art collector, formerly in a London private collection, formerly acquired on the UK art market since the 1970s. This piece is accompanied by an authentication statement by Sami Fortune, ancient jewellery specialist.