1977
Mark Stock, 1976
Anthony Zepeda, 1976
Gemini G.E.L., 1973
Gemini G.E.L., 1967
Gemini G.E.L., 1979
Gemini G.E.L., 1978
Gemini G.E.L., 1987
Robert Rauschenberg, 1992
Gemini G.E.L., 1969
Robert Rauschenberg, 1965
Gemini G.E.L., 1980
![#6 (after 'Untitled 1975') [progressive proof 11]](https://api.nga.gov/iiif/8065d349-73fa-4eec-ae33-9228d4c94e1b/full/843,/0/default.jpg)
![0 through 9 [trial proof]](https://api.nga.gov/iiif/b9fb4850-ef24-44fa-9c3d-0f5812747cf1/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, working proof 19]](https://api.nga.gov/iiif/55def8fa-c2e8-48da-b9b6-3c8ae179fe88/full/843,/0/default.jpg)
![Sky [special proof]](https://api.nga.gov/iiif/b93dc72d-201a-4370-9ba0-0fe4f6b9ade0/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 27]](https://api.nga.gov/iiif/f06317dd-9b4b-4276-82d7-68dc7019d4c9/full/843,/0/default.jpg)
![Figure 0 [progressive proof 2]](https://api.nga.gov/iiif/d1e4baee-048a-4492-b696-3f8561b366c3/full/843,/0/default.jpg)
![Celia Pondering [special proof]](https://api.nga.gov/iiif/f22d6731-1a24-4f09-b9e0-f147ce3f9661/full/843,/0/default.jpg)