1997
National Gallery of Art, 1971
National Gallery of Art, 1590
National Gallery of Art, 1997
National Gallery of Art, 1936
National Gallery of Art, 1968
National Gallery of Art, 1837
Patrons' Permanent Fund, 1973
National Gallery of Art, 1607
National Gallery of Art, 1961
National Gallery of Art, 1973
National Gallery of Art, 1827
National Gallery of Art, 1962
![Green Angel 2 [proof of 1st element, plate B, 2nd state]](https://api.nga.gov/iiif/bf7bed30-e440-4901-9969-d9ab884c0729/full/843,/0/default.jpg)
![Untitled 2-3-71 [study for "tattoo" book]](https://api.nga.gov/iiif/1e0e92a6-4bdb-490a-bc39-d5f7c81ce06f/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 25]](https://api.nga.gov/iiif/41ecc842-e0a3-4e4e-bdff-432dcb18595b/full/843,/0/default.jpg)
