1998
National Gallery of Art, 1898
National Gallery of Art, 1955
National Gallery of Art, 1642
National Gallery of Art, 1942
National Gallery of Art, 1612
National Gallery of Art, 1923
National Gallery of Art, 1841
National Gallery of Art, 1941
National Gallery of Art, 1933
National Gallery of Art, 1757
National Gallery of Art, 1937
National Gallery of Art, 1592
![UFO [working proof 4]](https://api.nga.gov/iiif/a20f2d8e-f7fb-4fd3-bd9a-c0d9cb643bb0/full/843,/0/default.jpg)
![Untitled [female nude lying flat on back]](https://api.nga.gov/iiif/32558195-b5b7-412c-aea6-3560596331cc/full/843,/0/default.jpg)
![Archetypa studiaque patris Georgii Hoefnagelii [Part 1, Plate 2]](https://api.nga.gov/iiif/a488767d-291f-45ed-a6e0-45050d89b2d4/full/843,/0/default.jpg)