1978
Gemini G.E.L., 1986
Mark Stock, 1976
Gemini G.E.L., 1978
Gemini G.E.L., 1974
Gemini G.E.L., 1982
Gemini G.E.L., 1976
Gemini G.E.L., 1981
Gemini G.E.L., 1969
Mark Stock, 1977
Gemini G.E.L., 1999
Anthony Zepeda, 1985
Gemini G.E.L., 1992
![#6 (after 'Untitled 1975') [progressive proof 7]](https://api.nga.gov/iiif/56d1a753-cb67-48a9-8d12-cc33873c0a96/full/843,/0/default.jpg)
![Cicada [trial proof]](https://api.nga.gov/iiif/a3f6ee18-23fc-4070-8fb3-88cab9bf687b/full/843,/0/default.jpg)
