2004
Gemini G.E.L., 1969
Gemini G.E.L., 1994
Gemini G.E.L., 1986
Gemini G.E.L., 1976
Gemini G.E.L., 1968
Gemini G.E.L., 1971
Gemini G.E.L., 1967
Gemini G.E.L., 1993
Gemini G.E.L., 1988
Ellsworth Kelly, 1985
![Figure 3 [trial proof]](https://api.nga.gov/iiif/bb244ffa-bedb-4287-b461-569de13cedb5/full/843,/0/default.jpg)
![Figure 1 [working proof]](https://api.nga.gov/iiif/b5d84be2-94ee-4f7b-bbaf-5925dec84af6/full/843,/0/default.jpg)
![Untitled [working proof]](https://api.nga.gov/iiif/1acceaab-41c1-4aea-a615-a2d129f6b6cd/full/843,/0/default.jpg)
![Catherine's Walk [special proof]](https://api.nga.gov/iiif/94faa50b-2a30-4595-a8b6-3b07aa592a70/full/843,/0/default.jpg)
