1978
Gemini G.E.L., 1980
Gemini G.E.L., 1971
Gemini G.E.L., 1991
Gemini G.E.L., 1975
Gemini G.E.L., 1978
Gemini G.E.L., 2004
Gemini G.E.L., 1995
Ellsworth Kelly, 1981
Edward Henderson, 1976
Gemini G.E.L., 1985
Gemini G.E.L., 1970
![Two Flags [trial proof C]](https://api.nga.gov/iiif/ac692c0c-0101-4523-be8a-daa4b4c23a73/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)
![Ale Cans [trial proof C]](https://api.nga.gov/iiif/962a073d-4aef-46db-a897-3de27d83a595/full/843,/0/default.jpg)
![#3 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/8169f808-7479-4209-8836-a0235ad6d5d5/full/843,/0/default.jpg)
![Berlin Dream Stamp (Negative Version) [special proof]](https://api.nga.gov/iiif/5e24a916-789d-4e7c-8e47-cfc82a8bba22/full/843,/0/default.jpg)
