1991
Gemini G.E.L., 1990
Gemini G.E.L., 1994
Gemini G.E.L., 1995
Gemini G.E.L., 1986
Gemini G.E.L., 1969
Gemini G.E.L., 1992
Claudio Stickar, 1995
Gemini G.E.L., 1971
Gemini G.E.L., 1980
Gemini G.E.L., 2004
![Untitled [trial proof]](https://api.nga.gov/iiif/a8203338-ea28-4e3a-a5a7-a0735ba60c53/full/843,/0/default.jpg)
![Delaware Crossing [color trial proof]](https://api.nga.gov/iiif/671ce331-d8cb-47c1-a606-594828a245d4/full/843,/0/default.jpg)
![Coathanger and Spoon [trial proof]](https://api.nga.gov/iiif/b83ef090-d42f-4d87-913b-c375906c78be/full/843,/0/default.jpg)
![Figure 9 [trial proof]](https://api.nga.gov/iiif/af957deb-7c45-4369-8638-4c2240390375/full/843,/0/default.jpg)