A very large Napoleon III marble-cased mantel clock, Constantin-Louis Detouche, Paris, third quarter 19th century, the black and white enamelled Roman numeral dial with glazed brass bezel set within a drum supported by a pair of volutes on a moulded plinth base, the dial signed and the movement stamped with Detouche's mark, 43.5 cm high, 89 cm wide, 22 cm deep. Other Notes: an impressive yet elegantly restrained clock by one of the most important nineteenth century French clock-makers, who, amongst many other honours, was appointed official clock-maker to Napoleon III and to the city of Paris.