ROC5892744: Recto: The muscles and nerves of the leg, c.1508 (pen & ink over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892746: Recto: The muscles of the leg, 1489 (pen & ink over black chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

CH827893: Drapery Study for a kneeling figure, (brush and brownish-grey distemper heightened with white on linen), Vinci, Leonardo da (1452-1519) / Private Collection / Bridgeman Images

MEB848319: Fight for the Standard at the Bridge with two infantrymen, Study for the 'Battle in Anghiari', by Leonado da Vinci, 1503 - 1505, 16th Century, pen and brown ink on light brown, Vinci, Leonardo da (1452-1519) / Gallerie dell'Accademia, Venice, Italy / Bridgeman Images

CPH165447: Head of a Man in Profile, c.1506-8 (pencil and red chalk on paper), Vinci, Leonardo da (1452-1519) / Gallerie dell'Accademia, Venice, Italy / Bridgeman Images

RTR5315908: Birds Flight Code, c. 1505-06, paper manuscript, cc. 18, sheet 6 recto, Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

RTR5315912: Birds Flight Code, c. 1505-06, paper manuscript, cc. 18, sheet 8 recto, Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

BAT58331: Drapery Study for a Standing Figure Seen from the Front, c.1478-80 (tempera and white on canvas), Vinci, Leonardo da (1452-1519) / Gabinetto dei Disegni e Stampe, Galleria Degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

ROC4071674: Verso: A design for a palace on a river island, c.1517-18 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC4071675: A deluge, c.1517-18 (chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892733: Verso: The muscles of the foot, c.1510-11 (pen & ink over some stylus on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892738: Recto: The muscles of the upper spine, c.1510-11 (black chalk, pen and ink, wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5674267: Recto: Studies of emblems, geometrical diagrams, and notes, c.1508-10 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5674273: Studies of the valves of the heart, and sketch of a suditary, and calculations, c.1511-13 (pen & ink on blue paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

XJF311695: Study for the head of a soldier in 'The Battle of Anghiari', c.1504-05 (red chalk on paper), Vinci, Leonardo da (1452-1519) / Museum of Fine Arts (Szepmuveszeti) Budapest, Hungary / Bridgeman Images

LRI4684817: Vegetable interlacing, 1498 (tempera on wall), Vinci, Leonardo da (1452-1519) / Castello Sforzesco, Milan, Italy / Bridgeman Images

RTR5315927: Birds Flight Code, c. 1505-06, paper manuscript, cc. 18, sheet 15 verso, Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

AII80166: Two studies of a hanging skeleton (pen & ink with wash), Vinci, Leonardo da (1452-1519) / Gabinetto dei Disegni e Stampe, Galleria Degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

ROC5617345: Studies of horses, c.1480 (metalpoint on cream prepared paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC3956001: A man ploughing with two oxen, and other farm workers, c.1495 (red chalk), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5674285: Studies of water, c.1510-12 (chalk, pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5242368: A map of the Arno west of Florence, 1504 (black chalk, pen & ink, with compass holes and stylus lines on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892754: Verso: The lungs, c.1508 (traces of black chalk, pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC5892766: Recto: The tongue, and the production of the voice, c.1508-10 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC412980: The chain ferry at Vaprio d'Adda (pen & ink on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC405161: The Virgin and Child and various studies, c.1490 (pen & ink over red chalk & wash on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

MEV5046892: Codex Atlanticus, sheet 850 recto, 1478-1518 (pen & ink), Vinci, Leonardo da (1452-1519) / Veneranda Biblioteca Ambrosiana, Milan, Italy / Bridgeman Images

ROC700109: The brachial plexus, c.1508 (pen & ink over chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

BEN140573: Detail of the Virgin Mary, from the Annunciation, 1472-75 (oil on panel) (post restoration), Vinci, Leonardo da (1452-1519) / Gallerie degli Uffizi, Florence, Tuscany, Italy / Bridgeman Images

RTR5315968: Studies of assault tanks with scythes, c. 1485 (pen and brown ink with traces of metallic tip on paper), Vinci, Leonardo da (1452-1519) / Biblioteca Reale, Musei Reali, Turin, Piedmont, Italy / Bridgeman Images

LRI4684836: Detail of the last supper: on the left the Apostles Judas, Peter and John, Christ in the centre and the Apostles Thomas, James the Major and Philip. 1495-1498 (fresco), Vinci, Leonardo da (1452-1519) / Museo del Cenacolo Vinciano, Santa Maria delle Grazie (Museum of the Last Supper), Milan, Italy / Bridgeman Images

CH419558: The Madonna of the Yarnwinder (oil on canvas), Vinci, Leonardo da (1452-1519) (after) / Private Collection / Bridgeman Images

XWM430767: Mona Lisa (oil on canvas), Vinci, Leonardo da (1452-1519) (after) / Walters Art Museum, Baltimore, USA / Bridgeman Images

CTS366758: The head of a woman and the head of a baby (metal-point on grey prepared paper), Vinci, Leonardo da (1452-1519) (follower of) / The Devonshire Collections, Chatsworth / Bridgeman Images

ROC3823043: Verso: The proportions of foot in relation to the face, c.1490 (pen & ink on paper) (verso of 3823042), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images

ROC412171: Studies of flowing water, with notes, c.1510-13 (pen & ink over red chalk on paper), Vinci, Leonardo da (1452-1519) / Royal Collection Trust / Bridgeman Images