1976
National Gallery of Art, 1993
National Gallery of Art, 1761
National Gallery of Art, 1557
National Gallery of Art, 1640
National Gallery of Art, 1973
Corcoran Gallery of Art, 1929
National Gallery of Art, 1876
National Gallery of Art, 1847
Corcoran Gallery of Art, 1922
National Gallery of Art, 1938
National Gallery of Art, 1969
![Four Panels from Untitled 1972 [C panel, trial proof 4]](https://api.nga.gov/iiif/0a493a86-89fe-4b7a-aa40-0541f63e3607/full/843,/0/default.jpg)
