A french gilt bronze, malachite and lapis lazuli mantel clock, circa 1860, circular malachite and

A french gilt bronze, malachite and lapis lazuli mantel clock, circa 1860, circular malachite and lapis lazuli dial, signed Bourdin Her Bt, gilt metal hands, stylized floral decoration to inside dial, the cast plinth case with decorated rams heads upon garlands, surmounted by a group of three playing putti, two sides inset with shaped rectangular panels with centred female masks, verso glass plate revealing a bell striking movement signed Bourdin A Paris, with Brocot escapement, height 43 cm, key.