A Napoleon III gilt bronze mantel clock by Le Roy & Sons, Paris, circa 1851, surmounted by a maiden and a swan with enamel face and Roman numeral dial, made for the first World's in London in 1851, inscribed to face inscribed to face 'Medaille de L'Exposition de Londres, 1851 Le Roy & Fils, Palais Royal a Paris a Paris', 38 cm high