1939
National Gallery of Art, 1951
National Gallery of Art, 1939
National Gallery of Art, 1444
National Gallery of Art, 1842
National Gallery of Art, 1645
National Gallery of Art, 1955
National Gallery of Art, 1903
National Gallery of Art, 1884
National Gallery of Art, 1442
National Gallery of Art, 1876
National Gallery of Art, 1933
National Gallery of Art, 1934
![Leonello d'Este, 1407-1450, Marquess of Ferrara 1441 [obverse]](https://api.nga.gov/iiif/6e76f27b-2c6e-4df2-a4a4-75cf2d4cd46f/full/843,/0/default.jpg)
![Three Studies of a Pig; Breton Boy Walking with a Jug [recto]](https://api.nga.gov/iiif/dc7ce369-a6c6-42cb-ab2f-4cd14d1efe4b/full/843,/0/default.jpg)
