1966
Josef Albers, 1967
Gemini G.E.L., 1969
Gemini G.E.L., 1999
Gemini G.E.L., 1967
Josef Albers
Josef Albers, 1972
Josef Albers, 1970
Gemini G.E.L., 1994
Josef Albers, 1942
Gemini G.E.L., 1986
Gemini G.E.L., 1974
![Figure 0 [experimental proof]](https://api.nga.gov/iiif/8b7833fc-4575-4d90-823e-5ce94f37f8ce/full/843,/0/default.jpg)
