[SONIA DELAUNAY]Sonia Delaunay. Rythmes et Couleurs New York Helen Serger/La Boetie, Inc. 1986 First Edition. Paperbound, 8 1/4Ó x 9 1/2Ó. With the ownership signature of E.R. Hagemann, art scholar, and author of German and Austrian Expressionism in the United States 1900 - 1939. An illustrated catalogue issued to accompany an exhibition of paintings and drawings by Sonia Delaunay. Fine in printed wrappers.