A 19th century green onyx cased mantel clock, the architectural case of temple form with broken arch pediment flanking a vaulted canopy raised on Corinthian and Doric columns from a deep plinth base of conforming outline, the dial with an annular chapter ring with Arabic numerals in circular cartouches, the centre with a fine pierced plaque, the French movement marked 'A.D. Mougin' striking on a gong. Width 465, height 36.5 cm