1966
Josef Albers, 1962
Gemini G.E.L., 1970
Gemini G.E.L., 1972
Gemini G.E.L., 1982
Gemini G.E.L., 1975
Josef Albers, 1972
Gemini G.E.L., 1976
Gemini G.E.L., 1980
Gemini G.E.L., 1981
Gemini G.E.L., 1971
Benjamin B. Smith, 1967
![Fool's House [working proof]](https://api.nga.gov/iiif/5a418233-157f-4045-935d-66594928e009/full/843,/0/default.jpg)
![Coathanger and Spoon [proof]](https://api.nga.gov/iiif/349401ac-7c1a-44b3-b5f1-15064ec2ee4c/full/843,/0/default.jpg)
