1975–1976
Gemini G.E.L., 1990
Benjamin B. Smith, 1970
Charles Ritt, 1967
Gemini G.E.L., 1982
Ed Ruscha, 1969
Gemini G.E.L., 1967
Gemini G.E.L., 1994
Charles Ritt, 1966
Gemini G.E.L., 1984
Benjamin B. Smith, 1974
Gemini G.E.L., 1973
Daniel Freeman, 1969
![Drypoint—Ocean Surface (Second State) [special proof]](https://api.nga.gov/iiif/8fea30fb-bcf6-4eda-be7d-161bf7a2a2fd/full/843,/0/default.jpg)
![Figure 2 [working proof]](https://api.nga.gov/iiif/e9f5a4ea-f6a1-4271-8cbc-6c777b43ecd3/full/843,/0/default.jpg)