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BERTHOUD, Ferdinand (1727-1807) Traité des montres à longitu...

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Estimate: £1,000 - £1,500
ca. US$1,242 - US$1,864
Price realised:  £1,875
ca. US$2,330
Lot number 274, Views: 69

BERTHOUD, Ferdinand (1727-1807). Traité des montres à longitudes … suiv i: 1°du Mémoire instructif sur le travail des horloges et des montres à longitudes; 2°de la Description de deux horloges astronomiques; 3°de l'Essai sur une méthode simple de conserver le rapport des poids et des mesures . Paris: Ph.-D. Pierres, 1792.
BERTHOUD, Ferdinand (1727-1807). Traité des montres à longitudes … suiv i: 1°du Mémoire instructif sur le travail des horloges et des montres à longitudes; 2°de la Description de deux horloges astronomiques; 3°de l'Essai sur une méthode simple de conserver le rapport des poids et des mesures . Paris: Ph.-D. Pierres, 1792. 4 parts in one volume, 4° (260 x 188mm). Half-title, title with etched royal arms by P.-P. Choffard , woodcut ornaments on part titles, 8 folding engraved plates by Choffard after the author. (Half-title and title browned at margins and slightly soiled, spotting to plates.) Contemporary calf, gilt spine with morocco label, green edges (large chips to covers, spine chipped at head and foot, joints cracked). Provenance : numerous contemporary annotations and corrections in ink and pencil on title, plates and text – Léon Leroy (bookplate). FIRST EDITION. The main treatise describes three of Berthoud’s marine timekeepers. One of the acknowledged inventors of the marine chronometer determining longitude at sea, the author became a member of the Royal Society on February 16 1764, and was appointed ‘Horloger du roi’ (Horologist-Mechanic by appointment to the King and the Navy) in 1770. However, in the second part of his book he complains that his reward has been inadequate compared to John Harrison's. The annotator of this copy clearly didn’t believe the author should have the honour of being ‘Méchanicien du Roi & de la Marine’ for this is crossed from the title-page and replaced by the humbler title of ‘Horloger’. The royal arms are crossed through, and so is the description of the printer Ph.-D. Pierres as ‘Premier imprimeur du Roi’. Baillie, Clocks and Watches , pp. 341-42; Bromley, Clockmakers’ Library , 78.

Informations about the auction
Auction house: Christie's
Title: The Giancarlo Beltrame Library of Scientific Books, Part II
Date of the auction: 30 Nov 2016
Address: Christie's
London