A George III mahogany and brass-mounted eight day longcase clock
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A George III mahogany and brass-mounted eight day longcase clock

JOHN HOLMES, LONDON. CIRCA 1775

Details
A George III mahogany and brass-mounted eight day longcase clock
John Holmes, London. Circa 1775
The breakarch hood with moulded cornice and brass ball finial, arched brass fishscale sound frets to the sides and canted and reeded angles to the front, the breakarch trunk door with moulded frame, above panelled and double-footed plinth, the 12 in. wide silvered dial with Roman and Arabic chapter ring, subsidiary seconds ring and date aperture, signed HOLMES/156,STRAND LONDON, blued steel hands, with strike/silent ring in the arch, the movement with thick brass plates joined by five pillars, anchor escapement with anti-friction dog-leg crutch piece, maintaining power, rack strike on bell; wood rod 'Ludlam' pendulum with massive circular lead bob and subsidiary spherical calibrated brass regulating bob, two brass weights
87½ in. (222 cm.) high
Exhibited
British Clockmaker's Heritage Exhibition, 23 May-14 September 1952, Science Museum, London, exhibit No.169, lent by Gordon F. Cole.
Special notice
No VAT will be charged on the hammer price, but VAT at 15% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.

Lot Essay

COMPARATIVE LITERATURE:
Tony Mercer, Chronometer Makers of the World, London, 1991, p.165
Thomas Reid, Treatise on Clock and Watch Making, Edinburgh, 1832, p.404 and p.432-453
Eric Bruton, The Wetherfield Collection of Clocks, London, 1981, p.224, fig.205

John Holmes regarded wooden pendulum rods highly and presented a paper on the subject to the Royal Society in 1771 (see lot 98 footnote). When overseeing the construction of the turret clock at Greenwich Hospital after the fire of 1779, Holmes sought the advice of the engineer John Smeaton (who built the Eddystone Lighthouse). The two were also partners in the Deptford Waterworks. He also consulted William Ludlam, William Ludlam Professor of Mathematics at Cambridge University, who in 1769 published a work with a description of a wooden pendulum. Holmes and Ludlam corresponded regularly on the specifications of the clock.
Bruton (op. cit.) shows a Holmes longcase clock of closely related design in the Wetherfield collection. Holmes frequently used 'Dutton' style cases (see also lot 93), employing the finest cabinet work of the day.

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