1986
Susan Rothenberg, 1990
Gemini G.E.L., 1992
Gemini G.E.L., 1966
Serge Lozingot, 1976
Gemini G.E.L., 1974
Gemini G.E.L., 1970
James Pollard, 1920
Gemini G.E.L., 1977
Gemini G.E.L., 1976
Gemini G.E.L., 1973
Gemini G.E.L., 1979
![#6 (after 'Untitled 1975') [progressive proof 8]](https://api.nga.gov/iiif/2e7abb66-a6d9-493c-93f8-39e87ac94f7a/full/843,/0/default.jpg)
![#6 (after 'Untitled 1975') [progressive proof 1]](https://api.nga.gov/iiif/3ab99139-48e3-45a3-9987-63c50e2acc2d/full/843,/0/default.jpg)
![Leg [proof]](https://api.nga.gov/iiif/6d05d89e-df0e-49fd-9c83-17f9b4df181d/full/843,/0/default.jpg)
![Sky [special proof]](https://api.nga.gov/iiif/b93dc72d-201a-4370-9ba0-0fe4f6b9ade0/full/843,/0/default.jpg)