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Pendule de cartonnier, en bronze ciselé et doré (usures), à décor de deux amours surmontant le cadran signé de Charles DUTERTRE à Paris. Encadrement à guirlandes de fruits et feuilles d’acanthe.. Bronze signé de OSMOND Socle de marbre blanc Epoque Louis XVI H : 42 – L : 41 – P : 14,5

A French, gilt-metal and enamel, pair case pocket watch. the dial and movement plate signed `Dutertre A Paris`. The rear of the case enamelled with a pictorial panel depicting figures fishing. (lacking movement, case a/f)

An unusual George II black japanned table clock with Dutertre`s duplex escapement. Indistinct original signature, circa 1740. The five pillar twin fusee bell striking movement with escapement composed of two escape wheels of varying diameter mounted on the same arbor which alternately engage with cranked pallets fitted with a standard verge type short bob pendulum, the backplate finely engraved with a grotesque mask within Ho-Ho bird inhabited foliate scrolls and a narrow ropetwist border, the 7 inch brass break-arch dial with calendar aperture to the matted centre within applied silvered Roman numeral chapter ring and Indian mask and scroll cast spandrels to angles, the arch with original signature boss bearing re-engraved script Tho Tompion, LONDINI (indistinct traces of original script visible on close examination) within a herringbone border and flanked by conforming mounts, the inverted bell-top case with foliate cast brass carrying handle above front door with scallop shell and scroll cast brass frets to upper quadrants, the sides with ruby glazed windows above blanked break-arch apertures, the rear with conforming glazed upper quadrants over break-arch aperture, the exterior decorated in raised polychrome and gilt with chinoiserie designs within foliate borders throughout, the cavetto moulded base with later brass bun feet, (finish rubbed, other relatively minor faults) 44cm (17.75ins) high excluding handle. The escapement in the current lot appears to be an early/contemporary application of the duplex arrangement as designed by the French horologist Jean Babtiste Dutertre (worked 1715-42), and was perhaps conceived as attempt to improve on the tic-tac escapement. The principle benefit is that the wear rate is greatly reduced as the pallets only engage once with each tooth for each rotation rather than twice (once from either side) for the standard tic-tac arrangement. In essence one wheel provides the entry action of a recoil arrangement and the second controls the exit. This division of the function of the escapement between two wheels allows the teeth on each wheel to be of a heavier profile than on the single escape wheel of a tic-tac escapement, further improving reliability and longevity. Dutertre`s design is illustrated in Reid, Thomas A TREATISE ON CLOCK AND WATCH MAKING plate IX/48 and is briefly described in Appendix B. The overall style, design and layout of the movement suggests London work from the second quarter of the eighteenth century. The engraving to the backplate is unusual being centred with a grotesque mask within a shaped reserve however the Ho-Ho bird foliate scroll infill is more typical of decoration found on London made clocks of the period. Overall the current lot has survived in original condition (including the escapement which is unaltered and has always been with the clock), however the erasing of the original signature to the boss in the arch is a shame as the name of maker of this unusual form of escapement has been lost, although further research and examination could result in a positive attribution.

An 18th Century French gold cased verge pocket watch by Dutertre, Paris, having enamelled dial with Arabic and Roman numerals, the movement numbered 2064, the case-edge decorated with applied bands of cabled gold, the back bearing turned decoration centred upon a relief medallion depicting a hound, bird and basket of fruit in different coloured metals, 40mm diameter

Egypt. 'Ile de Philae. Vue Générale Prise du Coté du Nord Ouest' and 'Ile de Philae. Vue des Monuments de l'Ile et des Montagnes de Granit qui l'Environnent', [1809. or later]',together two fine hand coloured engraved views after Balzac and Dutertre respec., former with publishers blindstamp, some light toning and marks mostly confined to margins, plate dimensions approx. 405. x 885. and 495. x 1015. mm respec. Plates 2. & 4. from volume 1. of 'Description de l'Egypte', Paris, 1809 28. Blacker 476. (2)

Egypt. 'Thèbes. Karnak. Vue Générale des Ruines du Palais, Prise du Nord Ouest', 'Thèbes. Karnak. Vue des Ruines de la Salle Hypostyle et des Appartemens de Granit du Palais', 'Thèbes. Karnak. Vue Perspective du Palais Prise de l'Interieur de la Cour du Coté de l'Ouest', 'Thèbes. Karnak. Vue Générale des Propylées et des Ruines du Palais Prise du Nord Est.', 'Thèbes. Karnak. Vue de la Porte et des Temples du Sud', [1809. or later], together five fine hand coloured engraved views after Dutertre, Cecile, Balzac and Lepère, publishers blindstamp to each, some light dampstaining and marks confined to margins, plate dimensions vary but typically approx. 540. x 995 Plates 17, 18, 41, 43. & 49. from volume III of 'Description de l'Egypte', Paris, 1809 28. Blacker 476. (5)