E BOURDON AND RICHARDS PATENT, PARIS. A 19TH CENTURY BAROMETER CLOCK the brass drum-shaped case enclosing a two-part enamel dial, the outer dial having a calibrated barometer, the inner clock dial with Roman numeral fronting an eight-day spring driven movement signed Richard á Paris and a Bourdon barometer mechanism attached to the back plate - in the original Moroccan leather case

15cm diameter