Original etching and engraving on a verge type hand laid paper. on paper.

Size in cm: The overall size is ca. 94 x 60 cm. The image size is ca. 88 x 43.7 cm. Size in inch: The overall size is ca. 37 x 23.6 inch. The image size is ca. 34.6 x 17.2 inch.

From a rare, landmark, classic engineering work: plate XLIII, captioned: Various mechanical constructions and machines used in the building of bridges. Among these, an Archimedes screw, waterwheels, a pumping apparatus and other methods of transporting water. (). This attractive original old antique print / plate originates from: 'Description des Projets et de la Construction des Ponts de Neuilly, de Mantes, d'Orleans et autres, du Projet du Canal de Bourgogne, Pour la Communication des deux Mers par Dijon, et de celui de la Conduite des Eaux de l'Yvette et de Bievre a Paris' (and the Supplement), by Jean Rodolphe Perronet, (Translation: Description of the projects and construction of the bridges of Nieully. Mantes, Orleans and others, the project of the Canal of Burgundy, for the connection of the two seas through Dijon, and those for the canals of Yvette and Bievre in Paris.), Paris: Imprimerie Royale, 1782-83 (the supplement published by Didot & Jombert, 1789). Jean Rodolphe Perronet (1708-1794) was a French architect and strucutral engineer, best known for his stone arch bridges. He is regarded as the father of modern bridge building, as his efforts brought the masonry bridge to technical and aesthetic perfection. He disregarded traditional rules of thumb, developing instead a scientific approach to bridge design, and his precepts as laid down in this work have been followed ever since. In 1747 Perronet was named director of the Bureau des dessinateurs du Roi (Royal office of designers). At this first 'Ecole des ponts et chaussees' Perronet was given the task of training bridge and road engineers and of overseeing their work in the regions in which they worked. The Bureau became the Bureau des eleves des ponts et chaussees, then in 1775 was renamed the Ecole des ponts et chaussees. Its organiser, inspiration and teacher, Perronet was a true spiritual father to his students and used a new teaching method which seems very contemporary to modern eyes. He was named 'Premier ingenieur du Roi' in 1763, and was elected a fellow of the Royal Society in 1788, after having become a member of the Academie des sciences in 1765. Besides the bridges, 2500 kilometers of road were made or repaired under Perronet's direction.Artists and Engravers: Engraved by P.G. Berthault after J.F. Eustache de St. Far.

Condition: Very good, given age. Original folds, as issued. Small tears in margins, not affecting image. General age related toning and occasional minimal light staining from handling as visible on image. Please study scan carefully.

Keywords: ANTIQUE PRINT-PL.XLIII-ENGINEERING-ARCHIMEDES SCREW-WATERWHEEL-PERRONET

(PCO) B51-22