1967
James Webb, 1969
James Webb, 1966
Robert Rauschenberg, 1968
Robert Rauschenberg, 1982
Gemini G.E.L., 1967
James Webb, 1976
Robert Rauschenberg, 1972
Robert Rauschenberg, 1988
Gemini G.E.L., 1972
Gemini G.E.L., 1976
Gemini G.E.L., 1977
![Figure 5 [working proof]](https://api.nga.gov/iiif/e6d60deb-19f5-4b34-baee-8be39d5ea772/full/843,/0/default.jpg)
![Figure 5 [trial proof]](https://api.nga.gov/iiif/613e3393-988c-4eac-8e7b-cde3e00b3517/full/843,/0/default.jpg)
![#1 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/9856a4ef-096a-4c62-a6da-05dd33df19ed/full/843,/0/default.jpg)
![0 through 9 [working proof]](https://api.nga.gov/iiif/8e7dce8d-eb00-4aa9-b0d5-4ccf95263a08/full/843,/0/default.jpg)
