Clock and barometer case

This eight-day longcase clock with an integrated wheel barometer was made in London between about 1725 and 1750 by John Ellicott. The case consists of walnut veneer over an oak carcass, resting on a plain plinth. It features a caddy-topped sliding hood with pedestal-mounted finials, a break-arch glazed door, brass-capped front columns, and glazed side apertures. The full-width rectangular trunk door contains moulded borders, herringbone banding, and an upper circular silvered dial with steel hands for the wheel barometer, which operates independently from the clockwork and is concealed internally by a mahogany board.

The clock’s brass break-arch dial measures 16½ inches in height and has a matted centre, winding shutters, mask head corner spandrels, and dolphin spandrels framing a spherical globe moon mechanism in the arch. It includes a silvered brass chapter ring with Roman hours and Arabic minute markings, a subsidiary seconds ring, and a square calendar aperture below an oval silvered plaque engraved "John Ellicott / London". Pierced steel hands indicate the hours and minutes.

The weight-driven movement is constructed of brass and steel with five knopped pillars, striking the hours on a bell via a rack and snail system. It features a deadbeat escapement with pendulum regulation, an escape wheel with slender teeth, and bolt-and-shutter maintaining power.