1980–1981
Gemini G.E.L., 1973
Gemini G.E.L., 1996
Gemini G.E.L., 1978
Gemini G.E.L., 1983
Gemini G.E.L., 1976
Gemini G.E.L., 2004
Gemini G.E.L., 1999
Gemini G.E.L., 1986
Gemini G.E.L., 1969
Gemini G.E.L., 1992
![Drypoint Theta [special proof]](https://api.nga.gov/iiif/86d9b732-bd19-4790-b277-3298550bbd77/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D Panel, working proof 10]](https://api.nga.gov/iiif/83e8c7fd-b780-4c4a-9c38-540dc46fb68e/full/843,/0/default.jpg)
![School [special proof]](https://api.nga.gov/iiif/63a60f8c-fea0-421f-b0b4-a5fe424e0273/full/843,/0/default.jpg)
![Figure 3 [color trial proof]](https://api.nga.gov/iiif/749a442c-2589-4cf8-8b0b-6a59e6356a02/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 23]](https://api.nga.gov/iiif/191b2b9f-8fdd-471a-b165-19f0f0c6913f/full/843,/0/default.jpg)
