1992–1993
Gemini G.E.L., 1981
Gemini G.E.L., 1975
Gemini G.E.L., 1986
Gemini G.E.L., 1985
Carmen Schilaci, 2002
Gemini G.E.L., 1969
Gemini G.E.L., 1973
Carmen Schilaci, 1992
Gemini G.E.L., 1970
Gemini G.E.L., 1990
Gemini G.E.L., 1976
![Cicada [trial proof]](https://api.nga.gov/iiif/6b632a24-c8fd-45ac-9890-c6a0893fae25/full/843,/0/default.jpg)
![Berlin Dream Stamp [special proof]](https://api.nga.gov/iiif/32ccbac3-1471-4f87-9d66-f719570fed26/full/843,/0/default.jpg)
![Night Sky 1 (Reversed) [special proof]](https://api.nga.gov/iiif/84474991-f0c6-4ce2-b7ac-bdc5479f0cc6/full/843,/0/default.jpg)
![Figure 4 [trial proof]](https://api.nga.gov/iiif/50648fee-98a6-4133-87fa-fbb3cb6e915a/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 9]](https://api.nga.gov/iiif/0bd96582-633e-4ca7-9500-fe28aa733643/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/606eeaec-3dba-4ed8-a6c2-dc015589613a/full/843,/0/default.jpg)
![Untitled [special proof]](https://api.nga.gov/iiif/93db5b4e-824a-4810-979d-7758f17fd945/full/843,/0/default.jpg)
![Bookplate for David Grainger Whitney [trial proof]](https://api.nga.gov/iiif/f200927e-d734-46c7-81db-c0e9800f15e1/full/843,/0/default.jpg)