1966
James Webb, 1972
Gemini G.E.L., 1971
James Webb, 1970
James Webb, 1971
Gemini G.E.L., 1974
James Webb, 1969
Josef Albers, 1963
Gemini G.E.L., 1969
Gemini G.E.L., 1973
Gemini G.E.L., 1986
Gemini G.E.L., 1999
Gemini G.E.L., 1967
![Alphabet [trial proof 2]](https://api.nga.gov/iiif/8b86d47c-dd73-4cc3-8b52-02d368a7462b/full/843,/0/default.jpg)
