1967
Gemini G.E.L., 1973
Gemini G.E.L., 1969
Frank Stella, 1967
Frank Stella, 1968
Gemini G.E.L., 1986
Gemini G.E.L., 1983
Daniel Freeman, 1969
Gemini G.E.L., 1977
Gemini G.E.L., 1967
Gemini G.E.L., 1980
![Four Panels from Untitled 1972 [C panel, trial proof 2]](https://api.nga.gov/iiif/5f0832b0-9e72-4685-924a-f450f72c585f/full/843,/0/default.jpg)
![Figure 0 [trial proof]](https://api.nga.gov/iiif/8fbdb5e2-560b-4bfa-bc50-4437f727639f/full/843,/0/default.jpg)
![[title not known]](https://media.tate.org.uk/art/images/work/P/P78/P78380_10.jpg)
![Figure 2 [trial proof]](https://api.nga.gov/iiif/81bbb5e0-9ba7-47c9-a68a-45c0873df752/full/843,/0/default.jpg)
