A French white and verde antico marble long-duration world time astronomical skeleton clock of exhibition quality, with full calendar and equation of time
THE PROPERTY OF A EUROPEAN COLLECTOR
A French white and verde antico marble long-duration world time astronomical skeleton clock of exhibition quality, with full calendar and equation of time

EMMANUEL ESCOUBÉ A TOULOUSE. DATED 1856

Details
A French white and verde antico marble long-duration world time astronomical skeleton clock of exhibition quality, with full calendar and equation of time
Emmanuel Escoubé A Toulouse. Dated 1856
The white enamel Roman chapter ring with finely pierced and engraved gilt-brass hands, blued steel sweep centre seconds, the white enamel equation dial above signed El. ESCOUBÉ HORLOGER A TOULOUSE FECIT, the blued steel arrow head hand indicating to the equation scale calibrated 0-20 Soleil Retarde - 0-20 Soleil Avance, the white enamel year dial indicating the seasons, the twelve signs of the zodiac and the months, the front plate signed below El ESCOUBÉ FECIT 1856, the left flanking white enamel dial indicating an annular date ring and the days of the week with their deities, the right flanking dial indicating a rolling moonphase, the subsidiary world time dials with white and dark blue enamel 24-hour night and day indications displaying time, longitude and latitude in eight further cities: TAITI 17.29'.21"SUD; NEW YORK 40.42'.45".; St. HÉLÈNE 15.55'.0". SUD; LONDRES 51.30'.49"; ALGER 36.47'.20"; ALEXANDRIE 31.12'53"; St. PETERSBOURG 59.46'.20"; CANTON 23.8'.9"; the movement with a central going train with long vertical central brass plates with going barrel and four wheel train terminating in a pinwheel escapement with high quality nine-rod knife-edge suspended gridiron pendulum, the planetary world time trains all driven from the centre wheel and all with fifty-four jewelled pivots within screwed châtons, the plates supported on a moulded white and verde antico moulded marble plinth; with a purpose-built perspex stand and casement with mirrored back
20¾in (52cm.) high
Literature
F.B. Royer-Collard, Skeleton Clocks, NAG Press, 1969, p.108, figs.6-28 and 6-29.

Lot Essay

Escoubé, recorded in the Rue de la Pomme, Toulouse, in 1840. He patented a remontoire system in 1858.
This exceptional skeleton clock was most likely made for an exhibition. According to the provenance given by F.B. Royer-Collard (op.cit.) it was purchased by a French watchmaker who emigrated to New York as a child and who, remembering it from his childhood, acquired it from the maker's granddaughter in 1937. Subsequently it was in the Norman Langmaid collection in Washington, D.C.
The finish of the movement is of a very high standard. The great wheel meshes with a twelve-leaf pinion which is carried by a large intermediate wheel. The centre, third and pin wheels have ten leaf pinions. Every pivot through the train is fitted on the front and rear frames with garnet endstones, fifty-four in total.

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