# Sheet of Studies \[recto\]

- By: Leonardo da Vinci (Florentine, 1452 - 1519)
- Date: probably 1470/1480
- Medium: pen and brown ink over leadpoint with blind stylus on laid paper
- Classification: Drawing
- Dimensions: overall: 16.4 x 13.9 cm (6 7/16 x 5 1/2 in.)
- Culture: Italian
- Credit line: The Armand Hammer Collection
- Museum: [National Gallery of Art](https://www.nga.gov/collection/art-object-page.74163.html)
- Rights: [Public domain (NGA Open Access, CC0)](https://creativecommons.org/publicdomain/zero/1.0/)
- Picture: https://api.nga.gov/iiif/49c325bf-6243-46eb-8215-f8830fd15641/full/!1920,1080/0/default.jpg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)