A FRENCH BLACK SLATE MYSTERY CLOCK

A FRENCH BLACK SLATE MYSTERY CLOCK, signed A.R. Guilmet, late 19th century, the twin barrel movement striking on a bell, the back plate stamped Brevete GLT S.C.D.C. and numbered 420, 4 1/4" black slate dial with gilt Roman numerals, the square case surmounted by a figure group of Venus holding aloft the pendulum with glass bob, Cupid at her side, lion mask side handles, moulded base and lion paw feet, 11 1/4" x 23" high (Illustrated)