Carl Andre (b. 1935) postcard to John Held, March 25, 1986
John Held papers relating to Mail Art
Postcards to Nancy Holt and Robert Smithson, July 22, 1958 and July 13, 1971
Robert Smithson and Nancy Holt papers
Carl Andre (b. 1935) postcard to John Held, March 25, 1986
John Held papers relating to Mail Art
Postcards to Nancy Holt and Robert Smithson, July 22, 1958 and July 13, 1971
Robert Smithson and Nancy Holt papers