A Louis XVI style enamelled Boîte-À-Miniature
the flange struck with marks resemling to the charge and discharge of Jean-Jacques Prevost, and a date-letter crowned B
Circular box, the independent cover, sides and base enamelled in translucent violet on a radiating wavy guilloché gold ground, the cover inset with circular enamel portrait miniature depicting a young lady wearing a white Rococo dress, lace cap with blue ribbon and a pearl choker, the lid and base bordered with pierced ribbon-twist gold mounts
52 mm. (2 in.) diam.