This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Leonardo da Vinci Sheet of Studies recto Google Art Project. special urlid rQFztLXTAnkA PDold Drawings of men by Leonardo da Vinci Google Art Project works by Leonardo da Vinci Drawings of women by Leonardo da Vinci Drawings in the National Gallery of Art
Page 2023 Free-images.com. All images are Public Domain