1981
Ron McPherson, 1973
Gemini G.E.L., 1973
Gemini G.E.L., 1972
Gemini G.E.L., 1968
Gemini G.E.L., 1975
Gemini G.E.L., 1978
Gemini G.E.L., 1976
Gemini G.E.L., 1991
![Four Panels from Untitled 1972 [D panel, trial proof 16]](https://api.nga.gov/iiif/446aa4b6-83ae-4e40-ad8c-e72b5b2b4f8d/full/843,/0/default.jpg)
![Ale Cans [trial proof I]](https://api.nga.gov/iiif/b9ebd203-93fb-439c-b242-21a6a9ea94ce/full/843,/0/default.jpg)
![Ale Cans [trial proof G]](https://api.nga.gov/iiif/d6a5e8a6-2788-4caa-b086-467927dc7c36/full/843,/0/default.jpg)
![Bookplate for David Grainger Whitney [trial proof]](https://api.nga.gov/iiif/bf0e3686-04c4-4b44-be23-6d37eda349f6/full/843,/0/default.jpg)
![French Horn Player (with Three Contexts—One Uncoded) [special proof]](https://api.nga.gov/iiif/b1afcd7a-c54d-4974-b581-19f35d6d6407/full/843,/0/default.jpg)
![Ale Cans [trial proof D]](https://api.nga.gov/iiif/49a99be7-f4fb-45a2-b071-a9218204d905/full/843,/0/default.jpg)