1971
Gemini G.E.L., 1968
Gemini G.E.L., 1991
Gemini G.E.L., 1969
Benjamin B. Smith, 1972
Gemini G.E.L., 1977
Gemini G.E.L., 1975
Gemini G.E.L., 1987
Gemini G.E.L., 1985
Gemini G.E.L., 1981
Gemini G.E.L., 1979
![Untitled [trial proof 3]](https://api.nga.gov/iiif/afdb4855-8d9e-41d6-b56e-0baaa4584965/full/843,/0/default.jpg)
![Figure 2 [working proof]](https://api.nga.gov/iiif/e9f5a4ea-f6a1-4271-8cbc-6c777b43ecd3/full/843,/0/default.jpg)
![Ale Cans [trial proof E]](https://api.nga.gov/iiif/decef2a7-e8fd-4a37-8e42-4c4554cd8688/full/843,/0/default.jpg)
![Berlin Dream Stamp [special proof]](https://api.nga.gov/iiif/32ccbac3-1471-4f87-9d66-f719570fed26/full/843,/0/default.jpg)
![Untitled [trial proof 4]](https://api.nga.gov/iiif/0b1724b6-38e7-462a-bf0a-9dd3fc8479de/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/b6afc846-c653-4745-a7f5-3606f14593ee/full/843,/0/default.jpg)
