1971
Gemini G.E.L., 1971
Josef Albers, 1956
Gemini G.E.L., 1973
Gemini G.E.L., 2004
Gemini G.E.L., 1980
Gemini G.E.L., 1983
Benjamin B. Smith, 1969
Gemini G.E.L., 1976
Josef Albers, 1972
Gemini G.E.L., 1996
![Four Panels from Untitled 1972 [C panel, trial proof 1]](https://api.nga.gov/iiif/ca0ff351-9b7b-4832-839e-6aa42a454366/full/843,/0/default.jpg)
![Coathanger and Spoon [proof]](https://api.nga.gov/iiif/93326aa8-55be-4c1d-9291-73fb38e28600/full/843,/0/default.jpg)
![#6 (after 'Untitled 1975') [progressive proof 11]](https://api.nga.gov/iiif/8065d349-73fa-4eec-ae33-9228d4c94e1b/full/843,/0/default.jpg)
