1971
Gemini G.E.L., 1983
Gemini G.E.L., 1966
Gemini G.E.L., 1968
Frank Stella, 1971
Gemini G.E.L., 1988
Gemini G.E.L., 1969
Gemini G.E.L., 1978
James Webb, 1973
Gemini G.E.L., 1972
Gemini G.E.L., 1975
James Webb, 1969
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/26731a48-174e-4989-af74-301c95760617/full/843,/0/default.jpg)
![Figure 5 [working proof]](https://api.nga.gov/iiif/1ede6c20-d024-455e-bf7d-5f8dee1e9634/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 23]](https://api.nga.gov/iiif/191b2b9f-8fdd-471a-b165-19f0f0c6913f/full/843,/0/default.jpg)
![Ale Cans [trial proof B]](https://api.nga.gov/iiif/dda1484f-b500-4f36-a5df-19d3fe228d31/full/843,/0/default.jpg)
![Figure 4 [trial proof]](https://api.nga.gov/iiif/b226699b-b7e1-4418-80d6-cbfbd95b771d/full/843,/0/default.jpg)
