A FRENCH SLATE AND MALACHITE INLAID MANTEL CLOCK

A FRENCH SLATE AND MALACHITE INLAID MANTEL CLOCK, C1870 the enamel dial painted with the heavens and clouds, having lunar work and three subsidiary dials for the days of the week, dates and months of the year, Breguet hands, in gilt brass egg and dart bezel above an HOLOSTERIC BAROMETER with enamel register and mercury thermometer, the movement striking on a bell, in architectural style breakarched case, with pendulum and contemporary key, backplate stamped U F Brevet SGDG in a star shaped punch, back of barometer stamped PHNB, 41cm h