1988
Claudio Stickar, 1987
Gemini G.E.L., 1967
Ellsworth Kelly, 1992
Gemini G.E.L., 1983
Gemini G.E.L., 1978
Gemini G.E.L., 1969
Claudio Stickar, 1994
Claudio Stickar, 1993
Gemini G.E.L., 1973
Gemini G.E.L., 1994
Gemini G.E.L., 1992
![[no title]](https://media.tate.org.uk/art/images/work/P/P20/P20163_10.jpg)
![Four Panels from Untitled 1972 [D Panel, working proof 10]](https://api.nga.gov/iiif/83e8c7fd-b780-4c4a-9c38-540dc46fb68e/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/0b22cf9c-f888-4979-9a58-d5286966643b/full/843,/0/default.jpg)