Extremely rare and superb old engraving on watchmaking published in 1765 This period engraving is taken from the Recueil de Planches de l'encyclopedia Diderot et d'Alembert - Horlogerie published in 1765. Collection of Plates on the Sciences, the Liberal Arts, and the Mechanical Arts, with their explanation. WATCHMAKING: Alarm clock mechanisms, horizontal clocks, spring pendulums, second pendulums, escapements, repeaters, equation pendulums, different watches, tools. Plate in very good condition, large format 46/30 cm. Very light wetting on the fringes. Beautiful 18th century pure rag paper, untrimmed. Big margins. Folding in the middle of origin. Good condition for the time, let's not forget that this engraving is more than 250 years old. Magnificent and authentic historical document.
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