1981–1982
Gemini G.E.L., 1989
Gemini G.E.L., 1967
Ellsworth Kelly, 1964
Gemini G.E.L., 1987
Ellsworth Kelly, 1987
Gemini G.E.L., 1980
Gemini G.E.L., 1969
Gemini G.E.L., 1978
Gemini G.E.L., 1968
Gemini G.E.L., 1975
Gemini G.E.L., 1971
Gemini G.E.L., 1982
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/2ff91d54-7f72-4d2a-a26a-cf3b4aa79feb/full/843,/0/default.jpg)
