2004
Gemini G.E.L., 1969
Gemini G.E.L., 1981
Gemini G.E.L., 1986
Gemini G.E.L., 1999
Gemini G.E.L., 1976
Gemini G.E.L., 1985
Joan and David Maxwell, 1830
Elizabeth Murray, 1843
![Figure 8 [working proof]](https://api.nga.gov/iiif/70cca2fe-69ea-4479-a3fc-b0d6032dd52f/full/843,/0/default.jpg)
![#5 (after 'Untitled 1975') [trial proof]](https://api.nga.gov/iiif/028f4d5b-1fe2-4dac-b467-d2d0709d1e67/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)
