Size: Transcript: 36 pages.
Format: Originally recorded on 1 sound tape reel. Reformatted in 2010 as 4 digital wav files. Duration is 2 hr., 18 min. An unrelated interview of Sylvester Jerry conducted by H. Phillips is also on this tape.
Summary: An interview of Leonard Thiessen conducted 1965 June 10, by Harlan Phillips, for the Archives of American Art.