Portico clock in white marble decorated with a flowery bouquet flanked by garlands, winged griffins and caryatids in gilt bronze. It rests on a base decorated with a frieze of acanthus leaves. White enamelled dial, signed Roquet in Paris, indicating the hours in Arabic numerals and the minutes in Roman numerals. Hanging wire, key Late 18th century H. 53 cm - L. 32 cm - W. 10 cm (accident to the drum, missing the stamp and a gilt bronze rosette, chip on a column) Jean-Jacques-Claude Martin Roquet, master in 1759, rue du Bourg-Thibourg, 1778-1783, practicing rue Saint-Placide, in 1791, then rue Grenelle Saint-Honoré. His balance sheet of 1786 mentions clocks with Carrara marble subjects.