A Victorian perpetual calendar mantel clock, the clock movement striking on a single bell, with white enamel dial enclosing a roundel with visible anchor escapement, above a shaped bevelled glass panel enclosing a Mercury-filled pendulum flanked by a perpetual calendar dial painted with a moonphase and a white enamel barometer/thermometer dial with visible movement to centre, within gilt embellished black slate and malachite inlaid waisted case, the rectangular base with shaped apron, 21ins (53cms) high