1971
Gemini G.E.L., 1983
Gemini G.E.L., 1972
Gemini G.E.L., 1987
Frank Stella, 1967
Gemini G.E.L., 1982
Gemini G.E.L., 1969
Ron Olds, 1972
Gemini G.E.L., 1976
James Webb, 1972
Gemini G.E.L., 1991
Gemini G.E.L., 1986
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/0fc75009-e3a8-42bd-8f95-8abb502b1043/full/843,/0/default.jpg)
![Zone [trial proof 2]](https://api.nga.gov/iiif/b55fc1e7-9393-464d-882d-5849802c27d8/full/843,/0/default.jpg)
![#6 (after 'Untitled 1975') [progressive proof 5]](https://api.nga.gov/iiif/6efaa3de-f319-42dc-a4e5-549d82fc0137/full/843,/0/default.jpg)
![Zone [working proof]](https://api.nga.gov/iiif/1999af7d-aa2f-47f4-b196-48da915e2733/full/843,/0/default.jpg)
