GIA4811167: Model of the air screw made from the drawing of Leonardo da Vinci (Leonardo da Vinci), flying machine, helicopter ancestor - Museum of Science and Technology of Leonardo da Vinci, Milan, Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images
LRI4635228: Geometry: “” An Icosahedron”” Page taken from the manuscript “” De divina proportione”” (On divine proportions) by mathematician Fra Luca Pacioli dit Luca di Borgo (1445-1517) illustrated by Leonardo da Vinci (1452-1519).1509., Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images