1971
Woodward Foundation, 1960
Frank Stella, 1970
Gemini G.E.L., 1999
Woodward Foundation, 1964
Woodward Foundation, 1973
Gemini G.E.L., 1976
Gemini G.E.L., 1986
Frank Stella, 1999
Gemini G.E.L., 1981
Gemini G.E.L., 1973
Gemini G.E.L., 1972
![#6 (after 'Untitled 1975') [progressive proof 2]](https://api.nga.gov/iiif/21449e8a-3c47-418e-bdd1-e1f01ce02806/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/52e7eb34-b71e-434a-98a5-1e90ab593861/full/843,/0/default.jpg)
![#6 (after 'Untitled 1975') [progressive proof 4]](https://api.nga.gov/iiif/83811d43-0371-4a80-893c-14df34d5290f/full/843,/0/default.jpg)