1988
National Gallery of Art, 1858
Patrons' Permanent Fund, 1973
National Gallery of Art, 1850
National Gallery of Art, 1897
National Gallery of Art, 1987
Patrons' Permanent Fund, 1981
National Gallery of Art, 1977
National Gallery of Art, 1879
National Gallery of Art, 1740
National Gallery of Art, 1954
National Gallery of Art, 1638
National Gallery of Art, 1935
![Four Panels from Untitled 1972 [D panel, trial proof 15]](https://api.nga.gov/iiif/d83c39d8-218c-4a50-8360-ba78d965fd42/full/843,/0/default.jpg)
![Poem (Qu' as tu...) [working proof]](https://api.nga.gov/iiif/ed2f6afb-d43a-41a6-8316-b1ac9dd1ffca/full/843,/0/default.jpg)
