1970–1971
Robert Rauschenberg, 1965
Gemini G.E.L., 1987
Robert Rauschenberg, 1973
Robert Rauschenberg, 1982
Gemini G.E.L., 1980
Robert Rauschenberg, 1983
Gemini G.E.L., 1977
Gemini G.E.L., 1975
Gemini G.E.L., 1986
Richard Ewen, 1972
Gemini G.E.L., 1972
![Two Flags [trial proof D]](https://api.nga.gov/iiif/b8cbc60f-5bad-4069-be4e-bf1814e92014/full/843,/0/default.jpg)
![Souvenir (Black State) [working proof]](https://api.nga.gov/iiif/240df90d-7cc9-4e20-8d27-30b01ce19f35/full/843,/0/default.jpg)
