Machines et inventions approuvées par l'Academie royale des sciences, depuis son établissement jusqu'à present : avec leur description : dessinées & publiées du consentement de l'Academie
A folio collection of machines and inventions approved by the Académie royale des sciences in Paris, compiled by Jean-Gaffin Gallon and published in 1735 for scientists, engineers and craftsmen. Its plates are numbered engravings with lettered figures showing gears, levels, scales and regulators, drawn in fine line with cross-hatched shading. A designer could draw on their precise mechanical diagrams for schematic linework, technical icons and period-accurate instrument details.
