A very rare mid-18th century French ormolu grande sonnerie striking mantel clock of two-week duration, with alarm and repeat

repeat alarm etienne lenoir engraved plates paris base outside cast elaborately movement control clock pierced heavy brass tapering upper countwheel operational deep pull large wide mantel duration sides berries shaped signed gilt framed functions 18cm striking foliate backplate noir 49cm 1/2in 19in sonnerie two-week swags waist frets dragon hands steel bezel barrel contained pairs form numbered lower larger high linked century french ormolu grande case attributed surmounted impressive berry finial laurel musical trophies acanthus leaves silk-backed sound white enamel arabic roman dial alarm-setting hand separate anchor escapement vertical ticking 32cm mid-18th robert inch spring silk suspension rare osmond scrollwork 5.25 triple aparis delicate pendulum