Good French black slate and malachite inlaid triple dial dru...

Hammer

£800

Good French black slate and malachite inlaid triple dial drumhead calendar clock, the movement back plate stamped H P & Co no. 3121/4484, the 7.25" clock chapter ring enclosing a recessed visible escapement over twin 5" calendar and aneroid barometer dials either side of a shaped pendulum window, within a scrolling stepped case, 23.5" high (pendulum)