A SWISS JEWELLED ENAMELLED GOLD SNUFF-BOX GENEVA, CIRCA 1820 navette-shaped box, the cover and base set with panels of translucent dark-blue enamel on an engine-turned ground, with gold taille d’épargne vases and green enamel foliage and colourful enamel flowers set at intervals with pearls and precious stones, the sides and outer sablé gold borders with slightly raised trailing green enamel foliage set with pearls and precious stones, the cover centred with an oval enamel plaque depicting an altar of love 3 1/8 in. (80 mm.) wide