1990–1993
Gemini G.E.L., 1981
Gemini G.E.L., 1967
Gemini G.E.L., 1966
Gemini G.E.L., 1970
Gemini G.E.L., 1980
Gemini G.E.L., 1973
Gemini G.E.L., 1985
Gemini G.E.L., 1982
Gemini G.E.L., 1968
Gemini G.E.L., 1983
Gemini G.E.L., 1972
![Portrait of My Father [special proof]](https://api.nga.gov/iiif/381b1db3-3806-47ef-981b-5c3053c648dc/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/9c29e63f-dfad-421c-bd9a-ea97914cc53b/full/843,/0/default.jpg)
![Gray Alphabets [working proof]](https://api.nga.gov/iiif/c7d881b5-8fca-4146-b30c-5820b30cbccc/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/6f31611f-61b9-46e4-ac34-f990523e26a6/full/843,/0/default.jpg)