A FINE MARINE BAROMETER WITH SYMPIESOMETER, SIGNED ON THE IVORY SCALES CLARK & SON GREENOCK, THE SILVERED SYMPIESOMETER PLATE ENGRAVED IMPRD. SYMPIESOMETER, THE SHAPED MAHOGANY CASE WITH CARVED DECORATION, LAQUERED TRAN CISTERN COVER, AND GIMBAL RING, WITH GIMBAL WALL MAINLY PLATE