1986
Gemini G.E.L., 1976
Gemini G.E.L., 1980
Gemini G.E.L., 1972
Gemini G.E.L., 1969
Gemini G.E.L., 1973
Gemini G.E.L., 2001
Gemini G.E.L., 2004
Gemini G.E.L., 1993
Gemini G.E.L., 1986
Gemini G.E.L., 1967
![#6 (after 'Untitled 1975') [progressive proof 12]](https://api.nga.gov/iiif/8b92f0be-db4c-4d7f-8224-d6a41153010d/full/843,/0/default.jpg)
![Drypoint Kappa [special proof]](https://api.nga.gov/iiif/d3138dde-9935-4612-8309-92d74464eeba/full/843,/0/default.jpg)
![Figure 8 [working proof]](https://api.nga.gov/iiif/a47feac4-f09e-47d8-98a9-69c3936a89c4/full/843,/0/default.jpg)
