Gilt bronze and brass aneroid barometer clock in the form of a double rudder wheel, topped by a compass on a gimbal, resting on a simulated gear pedestal, unsilvered. White enameled dial, hour markers with Roman numerals and minute track. White enameled dial, signed LAFONTAINE, Opticien Rue Royale, Paris, Time graduation. Rectangular base in red marble with white veins and brass plate. 31.5 x 22.5 x 14.5 cm. Wear, scratches, chips at keyhole, cracked compass glass.