1976
Edward Henderson, 1976
Gemini G.E.L., 1972
David Hockney, 1985
David Hockney, 2007
David Hockney, 1966
Gemini G.E.L., 1977
Gemini G.E.L., 1976
Gemini G.E.L., 1974
Gemini G.E.L., 1969
James Webb, 1966
Gemini G.E.L., 1978
![Zone [trial proof 4]](https://api.nga.gov/iiif/abaee809-c64a-4efa-9539-97ab064e85d9/full/843,/0/default.jpg)
![0 through 9 [trial proof]](https://api.nga.gov/iiif/418aeb8d-2947-407b-add1-3fb4ffbb6bf5/full/843,/0/default.jpg)
![#4 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/e412dbd6-a61c-422c-9421-70cf2c494fdb/full/843,/0/default.jpg)
