1975
National Gallery of Art, 1562
National Gallery of Art, 1937
National Gallery of Art, 1933
National Gallery of Art, 1929
National Gallery of Art, 1973
National Gallery of Art, 1754
National Gallery of Art, 1500
National Gallery of Art, 1993
National Gallery of Art, 1938
National Gallery of Art, 1989
National Gallery of Art, 1981
National Gallery of Art, 1890
![Four Panels from Untitled 1972 [C panel, trial proof 6]](https://api.nga.gov/iiif/c1346720-1220-455e-b848-0d39183464f7/full/843,/0/default.jpg)
![Untitled [trial proof 2]](https://api.nga.gov/iiif/f706fc3d-69c8-457a-8cfc-ecd0f75217d6/full/843,/0/default.jpg)
