1971–1972
Gemini G.E.L., 1971
Gemini G.E.L., 1976
Gemini G.E.L., 1992
Serge Lozingot, 1972
Serge Lozingot, 1973
Gemini G.E.L., 1999
Gemini G.E.L., 1982
Gemini G.E.L., 1980
Jeff Wasserman, 1967
Ron McPherson, 1973
Gemini G.E.L., 1968
![#1 (after 'Untitled 1975') [working proof]](https://api.nga.gov/iiif/3e7d05ce-f987-41ea-a420-f40a1df88ef0/full/843,/0/default.jpg)
![Souvenir (Black State) [working proof]](https://api.nga.gov/iiif/240df90d-7cc9-4e20-8d27-30b01ce19f35/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, working proof 19]](https://api.nga.gov/iiif/55def8fa-c2e8-48da-b9b6-3c8ae179fe88/full/843,/0/default.jpg)
![Drypoint Delta [special proof]](https://api.nga.gov/iiif/6467a0f7-a7ae-40fc-98b2-b27ea13e71b0/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [C panel, trial proof 4]](https://api.nga.gov/iiif/0a493a86-89fe-4b7a-aa40-0541f63e3607/full/843,/0/default.jpg)
