1947
National Gallery of Art, 1786
National Gallery of Art, 2012
Corcoran Gallery of Art, 1802
Corcoran Gallery of Art, 1844
National Gallery of Art, 1935
National Gallery of Art, 1435
National Gallery of Art, 1834
National Gallery of Art, 1590
National Gallery of Art, 1831
National Gallery of Art, 1999
National Gallery of Art, 1956
National Gallery of Art, 1962
![Study of a Hand [recto]](https://api.nga.gov/iiif/87551ff1-bdb9-4d7b-9cbf-bdbe473cf975/full/843,/0/default.jpg)
![Leonello d'Este, 1407-1450, Marquess of Ferrara 1441 [obverse]](https://api.nga.gov/iiif/d055ff33-5c6f-491f-ae0d-bbb3193e5c96/full/843,/0/default.jpg)
