1970
Paul Clinton, 1969
Gemini G.E.L., 1992
Gemini G.E.L., 1975
Frank Stella, 1980
Gemini G.E.L., 1971
Gemini G.E.L., 1981
Gemini G.E.L., 1998
Benjamin B. Smith, 1972
Frank Stella, 1996
Frank Stella, 1982
Benjamin B. Smith, 1970
![Ale Cans [trial proof D]](https://api.nga.gov/iiif/49a99be7-f4fb-45a2-b071-a9218204d905/full/843,/0/default.jpg)
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/e9a5612d-0efc-4b70-9b81-e99b1d2f5371/full/843,/0/default.jpg)
![Ale Cans [trial proof A]](https://api.nga.gov/iiif/29cf464a-4b21-46fc-a6ab-d08362bfb8b4/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/789ca858-4b3d-4a1a-8c56-3d8bcfe15149/full/843,/0/default.jpg)
