2004
Ellsworth Kelly, 1970
Gemini G.E.L., 1996
Gemini G.E.L., 1976
Gemini G.E.L., 1971
Gemini G.E.L., 1969
James Reid, 1988
Gemini G.E.L., 1968
Gemini G.E.L., 1979
Gemini G.E.L., 1982
![Bookplate for David Grainger Whitney [trial proof]](https://api.nga.gov/iiif/bf0e3686-04c4-4b44-be23-6d37eda349f6/full/843,/0/default.jpg)
![Figure 8 [working proof]](https://api.nga.gov/iiif/a47feac4-f09e-47d8-98a9-69c3936a89c4/full/843,/0/default.jpg)
![Figure 9 [color trial proof]](https://api.nga.gov/iiif/a6d86825-54ba-4a1a-921a-a56ed4b8b8f0/full/843,/0/default.jpg)