1441–1444
National Gallery of Art, 1936
National Gallery of Art, 1966
Kress Foundation, Samuel H., 1500
National Gallery of Art, 1981
National Gallery of Art, 1965
National Gallery of Art, 1825
National Gallery of Art, 1938
National Gallery of Art, 1884
National Gallery of Art, 1940
![Leonello d'Este, 1407-1450, Marquess of Ferrara 1441 [obverse]](https://api.nga.gov/iiif/58cb7c40-e9d3-4ab3-a06f-a2f6cf5ada57/full/843,/0/default.jpg)
![Light Bulb [trial proof]](https://api.nga.gov/iiif/a1ce4bf2-19ba-4958-bc9e-0a5eb9272185/full/843,/0/default.jpg)
![Parklandschaft am Ufer mit Booten (Riverboat Dock in a Park) [p. 1]](https://api.nga.gov/iiif/4cf6d6e2-1c86-4123-a56c-43d2447260d7/full/843,/0/default.jpg)
