1947
National Gallery of Art, 1964
National Gallery of Art, 1936
National Gallery of Art, 1935
National Gallery of Art, 1919
National Gallery of Art, 1909
National Gallery of Art, 1898
National Gallery of Art, 1976
National Gallery of Art, 1893
National Gallery of Art, 1941
National Gallery of Art, 1944
National Gallery of Art, 1937
National Gallery of Art, 1884
![#6 (after 'Untitled 1975') [progressive proof 2]](https://api.nga.gov/iiif/21449e8a-3c47-418e-bdd1-e1f01ce02806/full/843,/0/default.jpg)
![Aufsicht auf eine Straßenkreuzung (Top View on a crossing) [p. 47]](https://api.nga.gov/iiif/e6b12d89-d872-4d32-93d4-6e3da0bfc69a/full/843,/0/default.jpg)