2003
National Gallery of Art, 1815
National Gallery of Art, 1856
National Gallery of Art, 1991
National Gallery of Art, 1936
National Gallery of Art, 2001
National Gallery of Art, 1821
National Gallery of Art, 1963
National Gallery of Art, 1992
National Gallery of Art, 1937
National Gallery of Art, 1850
National Gallery of Art, 1956
National Gallery of Art, 1961
![Two Sunsets (One with Square Blue Moon) [special proof]](https://api.nga.gov/iiif/7f86a87e-70ef-4ea0-b787-cc4fcd92e717/full/843,/0/default.jpg)
![Untitled [working proof]](https://api.nga.gov/iiif/fde7efe5-e37d-4f95-8fe0-709ee6969d8a/full/843,/0/default.jpg)
