A good French Louis XVI ormolu mounted marble portico mantel clock, circa 1770

11-cm enamel dial with Roman numerals, gilt five minute marks and outer red date numerals, signed in red Roque A Paris, gilt engraved pierced hands and steel date pointer, countwheel bell striking anchor movement similar signed No.1311 with silk suspended pendulum, ormolu case surmounted by Minerva, supported by two fluted ormolu mounted black marble columns, rectangular white marble base with garland mounts raised on turned feet