Superb boxed French gold, diamond and jasper Ware chatelaine, c.1815, stamped with eagle head 18ct gold minimum fineness mark, the hook plate surmounted by shell design and suspending two chamfered rectangular gold plaques united by chains, each set with a circular blue and white jasper ware plaque depicting classical scenes, surrounded by duotone gold wreaths and small bezel set rose cut diamonds, terminating at three jasper appendages; a watch key, carnelian set seal and watch, in original presentation box with gilt embossed monogram 'M.O' and inner retailers stamp of 'Bijoux Anciens/E.Taburet/Rue Pasquier, 3/Paris', total weight 56.84gm, drop 17 cm published: "How the watch was worn, a fashion for 500 Years', by Genevieve Cummins, colour plate 125 & 126, page 54