1922–1932
National Gallery of Art, 1861
National Gallery of Art, 1884
National Gallery of Art, 1937
National Gallery of Art, 1907
National Gallery of Art, 1998
National Gallery of Art, 1940
National Gallery of Art, 1800
National Gallery of Art, 1956
National Gallery of Art, 1903
National Gallery of Art, 1938
National Gallery of Art, 1756
![Notizen und kleine Skizze (Notation and Small Sketch) [p. 35]](https://api.nga.gov/iiif/78a81fc8-37f0-4bcc-bb0b-2257b71b710e/full/843,/0/default.jpg)
![Freeway Building [working proof 2]](https://api.nga.gov/iiif/7a91464b-0b97-47f3-822c-a25b41da2bf0/full/843,/0/default.jpg)
![Portrait of a Man in a Cap and Jacket [recto]](https://api.nga.gov/iiif/03e3a254-54f7-484c-b93c-118b22ee29dd/full/843,/0/default.jpg)
