MEV5048418: Two Caricatures, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5048419: Three Heads, Kneeling Man, Old Man's Head, 1495-1530, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5048427: Putto on a cornice, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051272: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051278: Leonardo da Vinci's opinion about how to draw perspectives, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051253: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5051254: Page from the Treatise on Painting, Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC6166218: Verso: The principal organs and vessels of a woman (tracing), c.1508-10 (pen & ink on paper) (verso of 6166217), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC7073220: Verso: Studies of geometry c. 1510-13 (pen and ink), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJF308779: Fol. 54r from Paris Manuscript B, 1488-90 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

LRI4578938: Saint Peter (Drawing, 15th-16th century), Vinci, Leonardo da (1452-1519) / Albertina Museum, Vienna, Austria / Bridgeman Images

GIA4794254: Study of boat equipped with a series of oars by Leonard de Vinci (Leonardo da Vinci) (1452 - 1519). Drawing with pen and ink. Manuscript. Library of the Institut de France. Paris., Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

ROC828804: Head of a dog, c.1497 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

FAF161928: Detail of the vaulted ceiling of the 'Sala delle Asse' with a geometric branch pergola design, c.1498 (fresco) (b/w photo), Vinci, Leonardo da (1452-1519) / Castello Sforzesco, Milan, Italy / Bridgeman Images

XIR217644: Polyhedron, from 'De Divina Proportione' by Luca Pacioli, published 1509, Venice (engraving) (b/w photo), Vinci, Leonardo da (1452-1519) / Bibliotheque Nationale, Paris, France / Bridgeman Images

XIR3114463: St. John the Baptist, 1513-16 (oil on canvas) (detail of 2015), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

AND2916294: Divina Proportione, by Luca Pacioli (engraving), Vinci, Leonardo da (1452-1519) / The University of St. Andrews, Scotland, UK / Bridgeman Images

FAF3565895: Landscape of the Arno Valley, pen on paper, Leonardo da Vinci (1452-1519), Cabinet of Drawings and Prints, Uffizi Gallery, Florence, Vinci, Leonardo da (1452-1519) / Gabinetto dei Disegni e Stampe, Galleria Degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

BAT5470967: Profile of a man, Vinci, Leonardo da (1452-1519) / Bridgeman Images

RTR5315935: Bird Flight Code, c. 1505-06, paper manuscript, cc. 18, Cover IV, Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

RTR5315955: Sketch of ornamental motif within oval, c. 1483-1485? (pen and ink on light ochre paper), Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

RTR5315964: Studies of the musculature of the forelimbs of the horse, c. 1480 (metal tip on prepared light olive green paper), Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

PVD1683077: Study of expression, 16th century (drawing), Vinci, Leonardo da (1452-1519) / Bridgeman Images

MEV5047575: De Divina Proportione, Figure VI, sheet 94 recto: Elevated Empty tetrahedron, pyramid, Tetracedron elevatvs vacvvs, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047576: De Divina Proportione, Figure VII, sheet 94 verso: Perpendicular solid hexahedron, cube, Exacedron planvs solidvs, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047592: De Divina Proportione, Figure XXIII, sheet 102 verso: Cut solid icosahedron, Ycocedron abscisvs solidvs, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047606: De Divina Proportione, Figure XXXVII, sheet 109 verso: Elevated solid body with twenty-six bases, rhombicuboctahedron, Vigintisex basivm elevatvs solidvs, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047623: De Divina Proportione, Figure LIIII, sheet 117 recto: Empty polygonal quadrangular pyramid, Pyramis laterata quadrangvla vacva, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047625: De Divina Proportione, Figure LVI, sheet 118 recto: Empty polygonal pentagonal pyramid, Pyramis laterata pentagona vacva, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

MEV5047626: De Divina Proportione, Figure LVII, sheet 118 verso: Solid irregular polygonal triangular pyramid, Pyramis laterata triangvla inequilatera solida, Vinci, Leonardo da (1452-1519) (attr.to) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

LLM3651524: The Last Supper, St Matthew 26, Verse 17-30 (engraving), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

XOT366467: Reconstruction on da Vinci's design for a stabiliser (wood & metal), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

XOT366473: Model reconstruction of da Vinci's design for a ladder (wood & metal), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

LLE5238525: The Last Supper (engraving), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

GIA4760458: Wool loom. Model from the drawing of Leonardo da Vinci (Leonardo da Vinci). Museum of Science and Technology, Milan., Vinci, Leonardo da (1452-1519) (after) / Museo Nazionale della Scienza e della Tecnologia 'Leonardo Da Vinci', Milan, Italy / Bridgeman Images

SBA7129250: Leonardo da Vinci's water organ, Vinci, Leonardo da (1452-1519) (after) / Museo della Città 'Luigi Tonini', Rimini, Italy / Bridgeman Images