1966
Gemini G.E.L., 1972
Gemini G.E.L., 2000
Gemini G.E.L., 1978
Gemini G.E.L., 1992
Gemini G.E.L., 1975
Gemini G.E.L., 1981
Josef Albers, 1972
Josef Albers
Gemini G.E.L., 1969
Gemini G.E.L., 1980
Gemini G.E.L., 1973
![Untitled [trial proof]](https://api.nga.gov/iiif/e5e496cd-de3a-46d6-a81b-ecfad4ddcf17/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/60490bf2-3111-4c34-9a5b-ee41b6d67998/full/843,/0/default.jpg)
![Drypoint Beta [special proof]](https://api.nga.gov/iiif/ea062f42-eb4f-4b0f-9986-7ed3aff8c56c/full/843,/0/default.jpg)
![Face [proof]](https://api.nga.gov/iiif/c288566b-590f-49dc-bc8e-46d8c32b1ec7/full/843,/0/default.jpg)