1980–1981
Gemini G.E.L., 2004
Gemini G.E.L., 1980
Gemini G.E.L., 1982
Gemini G.E.L., 1973
Gemini G.E.L., 1969
Gemini G.E.L., 1972
Gemini G.E.L., 1992
Gemini G.E.L., 1971
![Drypoint Eta [special proof]](https://api.nga.gov/iiif/e7f4e14c-f266-4b3e-8981-9cec828495d8/full/843,/0/default.jpg)
![Figure 7 [progressive proof A]](https://api.nga.gov/iiif/23485099-dc04-4a27-9876-c7dc079d2fa8/full/843,/0/default.jpg)
![Good Time Charley [trial proof]](https://api.nga.gov/iiif/a6ae03df-f625-4ab6-9c03-fef5bdbebebe/full/843,/0/default.jpg)
![Figure 0 [experimental proof]](https://api.nga.gov/iiif/c0d5b13b-54c8-4d1a-ba73-cb0a1895630c/full/843,/0/default.jpg)
![Yunan (State I) [artist's proof]](https://api.nga.gov/iiif/d8a9a906-47c1-4840-92eb-1169a5d80343/full/843,/0/default.jpg)
