Ascending and Descending. Lithograph, 1960

'''Elderfield, John. ''Ascending and Descending. Lithograph,' 1960. Figure 6 in Gödel, Escher, Bach. By Douglas Hofstadter.

Rather geometrical and quite uniform ". . . monks trudge forever in loops" (Hofstadter [14], opposite Figure 6, and the discussion through 26).