1968
Gemini G.E.L., 1971
Gemini G.E.L., 1968
Gemini G.E.L., 2003
James Webb, 1966
Gemini G.E.L., 1979
James Webb, 1971
Gemini G.E.L., 1986
Gemini G.E.L., 1973
![Group [special proof]](https://api.nga.gov/iiif/9463a9e4-1168-4631-bc62-fb168d75570d/full/843,/0/default.jpg)
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/0fc75009-e3a8-42bd-8f95-8abb502b1043/full/843,/0/default.jpg)
![Hinged Canvas [working proof]](https://api.nga.gov/iiif/a6ae14d2-058f-49b6-bdce-be6cd9b9cd0d/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 16]](https://api.nga.gov/iiif/446aa4b6-83ae-4e40-ad8c-e72b5b2b4f8d/full/843,/0/default.jpg)