Photo shows Cosmos standing in front of a blackboard which reads "Cosmos appearance series #371..." Photographer's name from handwritten note on verso.
Cosmos in Cosmos Appearance Series #371, circa 1979 / Charles Denson, photographer. Cosmos Andrew Sarchiapone papers, circa 1860-2011, bulk 1940-2011. Archives of American Art, Smithsonian Institution.
Current copyright status is undetermined
Archives of American Art, Smithsonian Institution Washington, D.C. 20560