1940–1949
National Gallery of Art, 1916
Corcoran Gallery of Art, 1807
National Gallery of Art, 1631
Corcoran Gallery of Art, 1797
National Gallery of Art, 1446
National Gallery of Art, 1849
National Gallery of Art, 1799
National Gallery of Art, 1946
National Gallery of Art, 1935
National Gallery of Art, 2000
National Gallery of Art, 1516
National Gallery of Art, 1954
![Guarino da Verona, 1374-1460, Humanist [obverse]](https://api.nga.gov/iiif/42b74c40-9fae-4da4-a7c6-ed2f3333d498/full/843,/0/default.jpg)
![Cantilever Bridges [working proof 6]](https://api.nga.gov/iiif/6e88f1b8-94aa-4f69-892b-3fea2a0b9303/full/843,/0/default.jpg)
![A Deathbed Scene [recto]](https://api.nga.gov/iiif/0e9e55c9-e608-4eb9-8a89-bf3946c59062/full/843,/0/default.jpg)
