Twentieth Century American Drawing: Three Avant-Garde Generations, Solomon R. Guggenheim Museum, New York, New York , January 23 – March 22, 1976; Staatliche Kunsthalle Baden-Baden, Baden-Baden, Germany, May 26 – July 11, 1976; Kunsthalle Bremen, Bremen, Germany, July 18 – August 29, 1976

July 18, 1976