BAT377181:
Notes on the Changes of Direction in Flight, manuscript page from Codici Rari III 35.2, fol. 10v from Treatise on the Flight of Birds, 1505 (pen and ink on paper), Vinci, Leonardo da (1452-1519) / Bridgeman Images
XJF308767:
Suggestions on how to construct a bastion at night, fol. 70r from Paris Manuscript B, 1488-90 (pen & ink on paper), Vinci, Leonardo da (1452-1519) / 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) / Bridgeman Images