Portico clock in black or white marble and chased ormolu, formed of two fluted columns, topped with flowering vases, supporting the movement, the case adorned with an urn. Resting on a molded marble base with a small central projection adorned with foliate and pearl friezes and a quatrefoil. White enameled dial, with hour markers with Arabic numerals for the hours and dots and quarters for the minutes, in black. Key-wound movement. Wire suspension. Louis XVI style. 45 x 29.5 x 11 cm. Wear, scratches, including on the dial; a few chips.