1971
Gemini G.E.L., 1969
Josef Albers, 1962
Josef Albers, 1964
Gemini G.E.L., 1995
Gemini G.E.L., 1986
Gemini G.E.L., 1977
Gemini G.E.L., 1978
Gemini G.E.L., 1981
Gemini G.E.L., 1975
Gemini G.E.L., 1994
Gemini G.E.L., 1982
![Figure 5 [trial proof]](https://api.nga.gov/iiif/3c6381f9-6897-4af8-b288-bf83587aeb83/full/843,/0/default.jpg)
![Figure 8 [trial proof]](https://api.nga.gov/iiif/5fdf5575-6697-4c6a-9532-93c7913936d7/full/843,/0/default.jpg)
![Ale Cans [trial proof I]](https://api.nga.gov/iiif/b9ebd203-93fb-439c-b242-21a6a9ea94ce/full/843,/0/default.jpg)
