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Gemini G.E.L., 1972
Richard Serra, 1987
Gemini G.E.L., 1969
Gemini G.E.L., 1971
Gemini G.E.L., 1990
Gemini G.E.L., 1986
Gemini G.E.L., 1980
Gemini G.E.L., 1985
Gemini G.E.L., 1981
![Untitled [trial proof]](https://api.nga.gov/iiif/c3efb80f-1c47-449f-b9a0-9288e530423e/full/843,/0/default.jpg)
![Half Foot Etching with Black Cross (State) [special proof]](https://api.nga.gov/iiif/c9aa02b1-f4b6-4de1-9390-5f826d443e50/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/789ca858-4b3d-4a1a-8c56-3d8bcfe15149/full/843,/0/default.jpg)