1741
National Gallery of Art, 1849
National Gallery of Art, 1837
National Gallery of Art, 1537
National Gallery of Art, 1815
National Gallery of Art, 1471
National Gallery of Art, 1500
National Gallery of Art, 1950
National Gallery of Art, 1643
National Gallery of Art, 1914
National Gallery of Art, 1986
National Gallery of Art, 1903
National Gallery of Art, 1694
![Galeazzo Maria Sforza, 1444-1476, 5th Duke of Milan 1466 [obverse]](https://api.nga.gov/iiif/012eb44e-dbb0-4dd0-8ae5-39e040620457/full/843,/0/default.jpg)
![Drei Skizzen und Notizen (Three Sketches with Notations) [p. 19]](https://api.nga.gov/iiif/13dc6558-19e4-4229-97ed-a3a9a15d28d1/full/843,/0/default.jpg)
![Young Boy in Overalls [recto]](https://api.nga.gov/iiif/ccb60474-8b3c-4a91-bc98-43938f013548/full/843,/0/default.jpg)
