1971
Gemini G.E.L., 1984
Gemini G.E.L., 1981
Sam Francis, 1981
Gemini G.E.L., 1971
Ron Olds, 1971
Gemini G.E.L., 1967
Gemini G.E.L., 1972
Gemini G.E.L., 1973
Sam Francis, 1982
Gemini G.E.L., 1999
Gemini G.E.L., 1980
![Untitled [trial proof]](https://api.nga.gov/iiif/3e2e1a28-21b4-4ae7-b8f6-a41abc6520d2/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 3]](https://api.nga.gov/iiif/f9b0fdf8-55b3-4cdd-862a-24255ffbc10e/full/843,/0/default.jpg)
![Drypoint Lambda [special proof]](https://api.nga.gov/iiif/f2e1db6b-8d67-4964-8547-bdfdda54fe13/full/843,/0/default.jpg)