An early 19th century gold, chalcedony and turquoise vinaigrette of Royal interest

An early 19th century gold, chalcedony and turquoise vinaigrette of Royal interest
Of pumpkin shaped form composed of eight tapering oval cabochon chalcedony panels with applied chased two colour gold flowers with turquoise flowerheads on gold foliate foot, the matching hinged cover with turquiose flowerhead detail and central cartouche set with the Royal cypher for Queen Adelaide (1792-1849) suspended from a fancy link chain and finger ring with turquoise and gold flowerheads, circa 1835, height of vinaigrette approximately 5.2 cm., in later fitted case

See back cover illustration