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CHAYETTE et CHEVAL

1 - BERTHOUD, Ferdinand. Clarifications on the invention, theory…
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Estimate €400 - €500
Description
BERTHOUD, Ferdinand. Clarifications on the invention, theory, construction and testing of the new instruments proposed in France for determining longitudes at sea by measuring time. A follow-up to the *Essai sur l’horlogerie* and the *Traité des Horloges Marines*, and a response to a treatise … A summary of research carried out in France on the determination of longitudes at sea by the artificial measurement of time. 1773. In-4°, modern full shagreen, marbled endpapers, p. viii + 164 pp. PROVENANCE Large ‘F’ manuscript mark on the title page. Bibliothek de Tu, Dresden (stamp obliterated on the reverse of the title page).
See original version (French)
About the sale THE MECHANISMS OF TIME: WATCHMAKING AND RELATED SCIENCES
Auction location
Auction time 10/09/2026 at 2:00 PM
Pictures credits: Contact the Auction House
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