1968
Gemini G.E.L., 1976
Gemini G.E.L., 1971
Gemini G.E.L., 2007
Gemini G.E.L., 1972
Gemini G.E.L., 1993
Richard Wilke, 1969
Gemini G.E.L., 1984
James Webb, 1973
Gemini G.E.L., 1973
Gemini G.E.L., 1981
Gemini G.E.L., 1969
![#1 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/cf8054a2-8e31-4eda-adfc-67e25f8368ae/full/843,/0/default.jpg)
![Zone [working proof]](https://api.nga.gov/iiif/1999af7d-aa2f-47f4-b196-48da915e2733/full/843,/0/default.jpg)
![Pushing Up [special proof]](https://api.nga.gov/iiif/831d94ff-c161-4f11-8d48-4207cd69c830/full/843,/0/default.jpg)
![Figure 7 [trial proof]](https://api.nga.gov/iiif/f8b1a634-b575-4de8-8a02-6941a9c8338b/full/843,/0/default.jpg)
![Cicada [working proof]](https://api.nga.gov/iiif/7ca698ef-4fe1-47c6-8692-a0685a1afc09/full/843,/0/default.jpg)
![Figure 0 [trial proof]](https://api.nga.gov/iiif/15948f33-e42f-4402-a53a-dd37c5caada7/full/843,/0/default.jpg)