1982
Patrons' Permanent Fund, 1976
National Gallery of Art, 1864
National Gallery of Art, 1861
National Gallery of Art, 1859
National Gallery of Art, 1960
National Gallery of Art, 1783
National Gallery of Art, 1888
National Gallery of Art, 1593
National Gallery of Art, 1974
National Gallery of Art, 1829
National Gallery of Art, 1971
![Untitled (Blue) [working proof]](https://api.nga.gov/iiif/6c39764d-becf-432d-979f-8596f60609d7/full/843,/0/default.jpg)
![#2 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/a0bae658-6b8b-43d1-922f-470474ca8cbe/full/843,/0/default.jpg)
