1955–1967
National Gallery of Art, 1956
National Gallery of Art, 1884
National Gallery of Art, 1591
National Gallery of Art, 1841
National Gallery of Art, 1924
National Gallery of Art, 1626
National Gallery of Art, 1971
National Gallery of Art, 1936
National Gallery of Art, 1705
National Gallery of Art, 1470
National Gallery of Art, 1854
National Gallery of Art, 1968
![Untitled [seated female nude leaning forward in chair]](https://api.nga.gov/iiif/1bdc54f7-6d4d-4094-ae70-9e5461489b93/full/843,/0/default.jpg)
![Two Heads; Studies of Sheep [recto]](https://api.nga.gov/iiif/8268877b-c74c-46c7-85db-de619892d842/full/843,/0/default.jpg)
![White Target [trial proof]](https://api.nga.gov/iiif/4bca4d45-f514-48fc-ac71-9898709fd67e/full/843,/0/default.jpg)