1998
National Gallery of Art, 1516
National Gallery of Art, 1884
National Gallery of Art, 1956
National Gallery of Art, 1978
National Gallery of Art, 1600
National Gallery of Art, 1594
National Gallery of Art, 1931
National Gallery of Art, 1935
National Gallery of Art, 1925
National Gallery of Art, 1720
![Flag on Orange [trial proof]](https://api.nga.gov/iiif/45ccffed-8cd3-4c31-aece-592d79fe1971/full/843,/0/default.jpg)
![Three Studies of Men's Heads, One with Spectacles; Dogs, Children, and Two Bearded Men in Profile [verso]](https://api.nga.gov/iiif/d887b77d-6aaf-462d-8ffe-bf04e09c004f/full/843,/0/default.jpg)
![Begonnenes Skizze (Sketch of Face) [p. 9]](https://api.nga.gov/iiif/749de5df-39f2-4de3-846c-a17d52b0166a/full/843,/0/default.jpg)
