1974
Gemini G.E.L., 1972
Gemini G.E.L., 1991
Gemini G.E.L., 1971
Gemini G.E.L., 1974
Gemini G.E.L., 1990
Gemini G.E.L., 1967
Gemini G.E.L., 1982
Gemini G.E.L., 1981
Gemini G.E.L., 1978
![Two Sunsets (One with Square Blue Moon) [special proof]](https://api.nga.gov/iiif/7f86a87e-70ef-4ea0-b787-cc4fcd92e717/full/843,/0/default.jpg)
![Untitled [special proof]](https://api.nga.gov/iiif/c62530d9-ca36-42fd-bf41-18d28705b18b/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/6b632a24-c8fd-45ac-9890-c6a0893fae25/full/843,/0/default.jpg)
![Zone [trial proof 6]](https://api.nga.gov/iiif/39ebf91c-690c-4ad3-825f-2dc12d0f6dd2/full/843,/0/default.jpg)
