1967
Serge Lozingot, 1973
Jeff Wasserman, 1974
Gemini G.E.L., 1984
Gemini G.E.L., 1983
Gemini G.E.L., 1979
Gemini G.E.L., 1969
Gemini G.E.L., 1989
Gemini G.E.L., 1977
Gemini G.E.L., 1971
Gemini G.E.L., 1968
![Four Panels from Untitled 1972 [D panel, trial proof 26]](https://api.nga.gov/iiif/7be8b383-9e4d-43a6-8384-53a544d0c3bc/full/843,/0/default.jpg)
![Drypoint—Ocean Surface (Second State) [special proof]](https://api.nga.gov/iiif/8fea30fb-bcf6-4eda-be7d-161bf7a2a2fd/full/843,/0/default.jpg)
![Gulf [special proof]](https://api.nga.gov/iiif/4287a55f-d89e-4d51-ac50-c5ed2d55eb1a/full/843,/0/default.jpg)
![Alphabet [trial proof 2]](https://api.nga.gov/iiif/8b86d47c-dd73-4cc3-8b52-02d368a7462b/full/843,/0/default.jpg)
![Figure 8 [trial proof 2]](https://api.nga.gov/iiif/76aa8056-2a81-4f8a-a52c-61ebea9e56c0/full/843,/0/default.jpg)