1986–1987
Gemini G.E.L., 1969
Gemini G.E.L., 1971
Gemini G.E.L., 1980
Gemini G.E.L., 1988
Gemini G.E.L., 1977
Dan Flavin, 1978
Gemini G.E.L., 1981
Gemini G.E.L., 1989
![Yunan (State I) [artist's proof]](https://api.nga.gov/iiif/d8a9a906-47c1-4840-92eb-1169a5d80343/full/843,/0/default.jpg)
![Drypoint Theta [special proof]](https://api.nga.gov/iiif/86d9b732-bd19-4790-b277-3298550bbd77/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/6fee5baa-8c21-4da6-af4a-563c80d2398d/full/843,/0/default.jpg)
![Figure 9 [trial proof]](https://api.nga.gov/iiif/af957deb-7c45-4369-8638-4c2240390375/full/843,/0/default.jpg)
