1950–1959
National Gallery of Art, 1855
National Gallery of Art, 1993
National Gallery of Art, 1990
National Gallery of Art, 1947
National Gallery of Art, 1873
National Gallery of Art, 1926
National Gallery of Art, 1620
National Gallery of Art, 1906
National Gallery of Art, 1940
National Gallery of Art, 1886
National Gallery of Art, 1586
National Gallery of Art, 1976
![To Keep Watching the Town [working proof 7]](https://api.nga.gov/iiif/58ba5665-e17a-4cf4-b744-ec80fd7afc33/full/843,/0/default.jpg)
![#6 (after 'Untitled 1975') [progressive proof 15]](https://api.nga.gov/iiif/55152616-bdc8-4db4-94d1-fffd9fee52f0/full/843,/0/default.jpg)