1977
Gemini G.E.L., 1971
Gemini G.E.L., 1981
James Webb, 1968
Gemini G.E.L., 1969
Serge Lozingot, 1973
Mark Stock, 1977
James Webb, 1969
Gemini G.E.L., 1967
Gemini G.E.L., 1982
Gemini G.E.L., 1978
Gemini G.E.L., 1985
![Leg [trial proof]](https://api.nga.gov/iiif/c83bc856-90ea-47b7-a250-94fd3b1c02cd/full/843,/0/default.jpg)
![0 through 9 [trial proof]](https://api.nga.gov/iiif/69b8c30a-b882-49f6-9da2-99a775f05f06/full/843,/0/default.jpg)
![Figure 0 [experimental proof]](https://api.nga.gov/iiif/8b7833fc-4575-4d90-823e-5ce94f37f8ce/full/843,/0/default.jpg)
