1987–1988
Gemini G.E.L., 1975
Gemini G.E.L., 1982
Gemini G.E.L., 1977
Ellsworth Kelly, 1981
Ellsworth Kelly, 1978
Gemini G.E.L., 1969
Ellsworth Kelly, 1951
Serge Lozingot, 1983
Gemini G.E.L., 1973
Gemini G.E.L., 1976
Gemini G.E.L., 1974
![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)
![#6 (after 'Untitled 1975') [progressive proof 10]](https://api.nga.gov/iiif/0c54492d-0e03-4445-a553-2b5cc5fd3c00/full/843,/0/default.jpg)
