An unusual pearl, paste and enamel mourning ring, circa 1802

An unusual pearl, paste and enamel mourning ring, circa 1802, centring on a glazed panel containing hairwork and the initials AW in seed pearls, within a border of half pearls, to wide tapering band applied with white enamel, between borders of cushion-shaped blue pastes continuing around the ring, the interior inscribed 'Alice Worswick Obt 25 June 1802 At 70', mounted in gold, size U1/2, case inscribed '1834 Agnes Maria Swarbreck, The gift of Grandmama Andrade'