1976
National Gallery of Art, 1938
National Gallery of Art, 1619
National Gallery of Art, 1961
National Gallery of Art, 1925
National Gallery of Art, 1778
National Gallery of Art, 1965
Johns, Jasper, 1964
National Gallery of Art, 1939
National Gallery of Art, 1943
National Gallery of Art, 1774
National Gallery of Art, 1657
Gemini G.E.L., 1972
![#6 (after 'Untitled 1975') [progressive proof 3]](https://api.nga.gov/iiif/1eb1db68-7433-4124-8a79-76a9d32078e1/full/843,/0/default.jpg)
![Ale Cans [trial proof]](https://api.nga.gov/iiif/136c9e46-9974-4bc9-96ba-e99a498aeac2/full/843,/0/default.jpg)
![Zone [trial proof 3]](https://api.nga.gov/iiif/48ae5fc8-ddf3-4aaf-bf9b-81e89a127636/full/843,/0/default.jpg)