1967
Gemini G.E.L., 1967
Charles Ritt, 1979
Gemini G.E.L., 1972
Gemini G.E.L., 1969
Gemini G.E.L., 1983
Charles Ritt, 1969
Gemini G.E.L., 1968
Gemini G.E.L., 1975
![Figure 7 [trial proof]](https://api.nga.gov/iiif/2a926bce-1780-418f-9d82-a50ecc5c8406/full/843,/0/default.jpg)
![Figure 3 [color trial proof]](https://api.nga.gov/iiif/749a442c-2589-4cf8-8b0b-6a59e6356a02/full/843,/0/default.jpg)
![Figure 1 [working proof]](https://api.nga.gov/iiif/b5d84be2-94ee-4f7b-bbaf-5925dec84af6/full/843,/0/default.jpg)
![Figure 0 [trial proof]](https://api.nga.gov/iiif/63fe52a2-5065-4d46-b6db-11e71dcc1ab3/full/843,/0/default.jpg)
