1989
National Gallery of Art, 1976
National Gallery of Art, 1557
National Gallery of Art, 1930
National Gallery of Art, 1935
National Gallery of Art, 1647
National Gallery of Art, 1979
National Gallery of Art, 1961
National Gallery of Art, 1936
National Gallery of Art, 1996
National Gallery of Art, 1927
National Gallery of Art, 1700
![Hatching and Flagstones [trial proof 3]](https://api.nga.gov/iiif/353112ec-6d71-44d6-88fe-c4aaa3a74cef/full/843,/0/default.jpg)
![Untitled [trial proof of 2nd state]](https://api.nga.gov/iiif/6cd401cd-e99a-4ce3-b8b2-5b398b651196/full/843,/0/default.jpg)
