1982
National Gallery of Art, 1972
National Gallery of Art, 1933
National Gallery of Art, 1570
National Gallery of Art, 1995
National Gallery of Art, 1997
National Gallery of Art, 1524
National Gallery of Art, 1991
National Gallery of Art, 1955
National Gallery of Art, 1614
National Gallery of Art, 1884
National Gallery of Art, 2008
National Gallery of Art, 1939
![Two Flags [trial proof]](https://api.nga.gov/iiif/e01f936f-b797-481d-a6a7-99fbc808b180/full/843,/0/default.jpg)
![Long Horizon II [center]](https://api.nga.gov/iiif/dea3d3ef-a781-4885-b8dc-611a1db741b4/full/843,/0/default.jpg)
![Green Angel 2 [trial proof 20]](https://api.nga.gov/iiif/9bc3fce4-4b07-4eab-b6c6-1fdeaf1cb9fa/full/843,/0/default.jpg)
![Untitled [figure lying down and raising elbow]](https://api.nga.gov/iiif/ef31c9e2-c1f9-4e7e-a0e8-7f00457b76ee/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)
