Boisson, London: An unusual early 18th century silver paircase oignon verge pocketwatch in plain outer case, the plain inner case glazed to reveal the painted enamel cock with a portrait of a lady, a black enamel mask attached to the balance passing before her eyes, later white enamel dial with Roman numerals and Arabic five-minute divisions, the signed frosted gilt fusee movement with verge escapement, the pierced Egyptian pillars with silvered gadrooned decoration to the top