1988
National Gallery of Art, 1861
National Gallery of Art, 1979
National Gallery of Art, 1954
National Gallery of Art, 1955
National Gallery of Art, 1962
National Gallery of Art, 1935
National Gallery of Art, 1940
National Gallery of Art, 1884
National Gallery of Art, 1649
National Gallery of Art, 1856
National Gallery of Art, 1989
National Gallery of Art, 1920
![Van [working proof 16]](https://api.nga.gov/iiif/96b67b73-e092-439f-872d-361653e3273f/full/843,/0/default.jpg)
![2 Wings for Wall and Person [top row, panel A]](https://api.nga.gov/iiif/03667754-af89-4eb8-b2b3-8d18d0440b1d/full/843,/0/default.jpg)
![Skizze für Frühe Menschen, Notizen (Sketch for Early Men with Notation) [p. 11]](https://api.nga.gov/iiif/60d74a8b-4be3-4bbb-a825-631e46e1574b/full/843,/0/default.jpg)
