A French Directoire ormolu skeleton clock fine enamel and calendar, Gaston Joly, circa 1795.

enamel dial with Roman numerals and fine gilt and ebngraved hands, subsidary for date and day of the week below and moon phase above, the whole with a fine blue enamel surround with gilt applied stars signed G.(aston) Joly à Paris, raised on two arched supports with two flanking ormolu merman with trumpets, mounted on marble bases on a rectangular white marble plinth with applied ormolu mounts raised on toupee feet, movement with 8-day duration and countwheel half hour striking on a bell, silk suspended pendulum with sunburst bob, supplied with a custom made glass dome and parcel gilt base.