1966
Gemini G.E.L., 1975
Gemini G.E.L., 1974
Gemini G.E.L., 1988
Gemini G.E.L., 1972
Gemini G.E.L., 1981
Gemini G.E.L., 1982
Gemini G.E.L., 1970
Josef Albers, 1955
Gemini G.E.L., 1971
Gemini G.E.L., 1999
Gemini G.E.L., 1977
![Ale Cans [trial proof]](https://api.nga.gov/iiif/9c696086-559e-41bd-9c46-f3e01e892a9d/full/843,/0/default.jpg)
![Ale Cans [trial proof A]](https://api.nga.gov/iiif/0b14bc45-9ed0-4d74-b35c-97f12ef5c252/full/843,/0/default.jpg)
![Self Portrait (State) [special proof]](https://api.nga.gov/iiif/c18db3af-ff6c-453c-a501-f4e6a1ba9c11/full/843,/0/default.jpg)
![0 through 9 [working proof]](https://api.nga.gov/iiif/bb5749dc-fe7a-479b-80ce-942cd2d6de4e/full/843,/0/default.jpg)