1967
Gemini G.E.L., 1968
Gemini G.E.L., 1991
Gemini G.E.L., 1973
Gemini G.E.L., 1987
Gemini G.E.L., 1981
Gemini G.E.L., 1971
Gemini G.E.L., 1966
Gemini G.E.L., 1999
![Four Panels from Untitled 1972 [D panel, trial proof 15]](https://api.nga.gov/iiif/d83c39d8-218c-4a50-8360-ba78d965fd42/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/e26ba67c-abb5-4924-9ee3-63fe74a0c500/full/843,/0/default.jpg)
![Cicada [working proof]](https://api.nga.gov/iiif/af247bb1-75a7-47c6-bc00-42ddb10d9da8/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 25]](https://api.nga.gov/iiif/41ecc842-e0a3-4e4e-bdff-432dcb18595b/full/843,/0/default.jpg)