1975–1976
Gemini G.E.L., 1972
Gemini G.E.L., 1992
Serge Lozingot, 1973
Gemini G.E.L., 1999
Gemini G.E.L., 1971
Gemini G.E.L., 1981
Gemini G.E.L., 1969
Sam Francis, 1960
Sam Francis, 1981
Gemini G.E.L., 1980
![Untitled [trial proof]](https://api.nga.gov/iiif/1283efd3-de54-42b3-a090-9d9497842a5b/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/6b632a24-c8fd-45ac-9890-c6a0893fae25/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/8316da5a-d6a1-4ded-9369-f0d18e9e3305/full/843,/0/default.jpg)
![Drypoint Gamma [special proof]](https://api.nga.gov/iiif/9abd8b66-c637-403e-bf5d-3a9356709bff/full/843,/0/default.jpg)