A FRENCH ORMOLU AND SEVRES-STYLE MANTEL CLOCK, surmounted by an oval portrait medallion, with foliate pendants, the circular white enamel dial signed Wm. ROSKELL, PARIS, with twin-train movement striking on a bell, flanked by two portrait roundels and with a cherub panel below, the sides with curved ribbon-tied folaite panels, on shaped acanthus-cast base with bun feet,mid-19th Century