Size: Transcript: 129 p.
Format: Originally recorded on 3 sound tape reels. Reformatted in 2010 as 4 digital wav files. Duration is 3 hrs., 17 min. Location of the first of the three tapes is unknown.
Summary: An interview of John Opper conducted 1968 Sept. 9-1969 Jan 3, by Irving Sandler, for the Archives of American Art.