ROC478426: A sheet of pictographs drawn over an architectural plan, c.1487 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399244: The bust of a man and the head of a lion, c.1505-10 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399265: The bones of the foot, and the muscles of the neck, c.1510 (pen & ink with wash over black chalk on paper) (verso of 5321249), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XOT366471: Model reconstruction of da Vinci's design for a vertical ornithopter (wood, cloth & string), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

ROC478433: Notes on optics, c.1508 (pen & ink with red and black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR161996: Studies for a Madonna with a Cat, c.1478-80 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Musee Bonnat, Bayonne, France / Bridgeman Images

XIR161991: Drapery study (gouache on canvas), Vinci, Leonardo da (1452-1519) / Musee des Beaux-Arts, Rennes, France / Bridgeman Images

BAL230516: The Last Supper, 1495-97 (fresco) (post restoration), Vinci, Leonardo da (1452-1519) / Museo del Cenacolo Vinciano,Santa Maria delle Grazie (Museum of the Last Supper), Milan, Italy / Bridgeman Images

MEV5046885: Codex Atlanticus, sheet 846 verso,1478-1518 (pen & ink), Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC3469472: A study for an equestrian monument, c.1485-90 (metalpoint on blue paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC427466: The uterus of a gravid cow, c.1508-09 (pen & ink over chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC409850: Studies for the Last Supper and architectural geometric sketches, c.1494 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJF308751: Centralised church, and maritime engineering, Fol. 5v from Codex Ashburnham (formerly part of Manuscript B (2184), c.1488 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Institut de France, Paris, France / Bridgeman Images

ROC487770: Studies for an equestrian monument, c.1517 (pen & ink over chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399239: A branch of blackberry (Rubus fruticosus), c.1505-10 (chalk & white heightening on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XOT362330: Presumed Self-portrait (Lucan portrait of de Vinci), 1490-1500 (tempera on panel), Vinci, Leonardo da (1452-1519) / Galleria degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

GIA4811914: Leonardo da Vinci self-portrait, Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

ROC399284: Studies of a cranium, 1489 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC443712: A rocky ravine, c.1475 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399236: Scenes of the Apocalypse, with notes, c.1517-18 (pen & ink, wash and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

MEV5047330: Codex Atlanticus, sheet 1069 recto, 1478-1518 (pen & ink), Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC478419: The bust of the Madonna, c.1500 (red chalk over metalpoint on red paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

BIF161932: Design for a dredger and various hydraulic machines, fol. 75v and 76r from Paris Manuscript E, 1513-14 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

ROC399224: Horses, St. George and the Dragon, and a lion, c.1517-18 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC480616: A mask in the form of a human face, c.1496 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC399228: A study for an equestrian monument, c.1517-18 (pen & ink and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC3955996: The Madonna and Child with the infant Baptist, and heads in profile, c.1478 (pen & ink), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5674269: erso: The muscles of the face and arm, and the nerves and veins of the hand, c.1510-11 (black chalk, pen & ink and wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC700091: The head of St. Bartholomew, c.1495 (red chalk on pale red paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XIR161929: Portrait of a Man Shouting (charcoal on paper) (b/w photo), Vinci, Leonardo da (1452-1519) / Louvre, Paris, France / Bridgeman Images

BLH5900896: The Madonna of the Yarnwinder, c.1499 (oil on panel), Vinci, Leonardo da (1452-1519) (attr.to) / National Galleries of Scotland, Edinburgh / Bridgeman Images

ROC399231: Two heads of grotesque animals, c.1490-95 (pen & ink and chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XCF259761: Detail of the Head of the Virgin, from The Virgin of the Rocks (The Virgin with the Infant Saint John adoring the Infant Christ accompanied by an Angel) detail, c.1508 (oil on panel), Vinci, Leonardo da (1452-1519) / National Gallery, London, UK / Bridgeman Images

AIS291724: Vertically Standing Bird's-winged Flying Machine, fol. 80r from Paris Manuscript B, 1488-90 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Bibliotheque de l'Institut de France, Paris, France / Bridgeman Images

ROC3740757: The bones and muscles of the leg, c.1510-11 (pen & ink with wash over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC478428: A cloudburst of material possessions, c.1510 (pen & ink with black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images