A GERMAN JEWELLED ENAMELLED VARI-COLOUR GOLD SNUFF-BOX HANAU, CIRCA 1780, STRUCK WITH THE HANAU TOWN MARK FOR EIGHTEEN CARAT GOLD AND TWO FRENCH POST-1838 RESTRICTED WARRANTY MARKS FOR GOLD, THE MINIATURE BY JEAN-PIERRE HUAUT (SWISS, 1655-1723) and AMY HUAUT (SWISS, 1657-1724) oval box, the cover, sides and base set with panels of translucent purple enamel on an engine-turned ground in lilac enamel frames, within chased vari-colour gold foliate and vine borders and side pilasters, the cover set with an enamel portrait miniature, on copper, of a gentleman, within a silver diamond-set frame with a gold taille d’épargne vine and leaf border 3 1/8 in. (80 mm.) wide