Paul Klee / Will Grohmann -- Colorplates: Artist at the window: Collection Felix Klee, Bern -- Hammamet with mosque: Collection Heinz Berggruen, Paris -- Side panels for Anatomy of Aphrodite: Collection Felix Klee, Bern -- Little tree amid shrubbery: Collection Nika Hulton, London -- Full moon: Otto Stangl Gallery, Munich -- Southern (Tunisian) gardens: Collection Heinz Berggruen, Paris -- Dream city: Private collection, Turin -- City picture with red and green accents: Collection Dr. J. Steegmann, Cologne -- Women's pavilion: Collection Mr. and Mrs. Ralph F. Colin, New York -- Singer L. As Fiordiligi: Collection Norman Granz, Geneva -- Landscape at sunset: Marlborough Gallery, London -- Landscape with yellow birds: Private collection, Switzerland -- Ancient sound, abstract on black: Kunstsammlung, Basel -- Goldfish: Kunsthalle, Hamburg -- Black prince: North Rhine-Westphalia State Collection, Dusseldorf -- Chosen site: Private collection, Munich -- Pastoral (Rhythms): Museum of Modern Art, New York, Nelson A. Rockefeller Fund -- Highway and byways: Collection Christoph and Andreas Vowinckel, on loan to the Wallraf-Richartz Museum, Cologne -- Before the snow: Collection Allenbach, Bern -- Error on green: Galerie Beyeler, Basel -- Open book: Solomon R. Guggenheim Museum, New York -- Tempo of three, quartered: Private collection, Germany -- Still life with dove: Collection Dr. and Mrs. Howard D. Sirak, Columbus, Ohio -- Light and so much else: Private collection, Germany -- Ad parnassum: Kunstmuseum, Bern -- Small room in Venice: Kunstmuseum, Basel -- Ravaged land: Galerie Beyeler, Basel -- Coming to bloom: Galerie Beyeler, Basel -- Mountain village (Autumnal): Galerie Rosengart, Lucerne -- Southern gardens: Collection Norman Granz, Geneva -- Child and aunt: Galerie Beyeler, Basel -- Oriental garden: Collection Mr. and Mrs. James W. Alsdorf, Winnetka, Illinois -- Heroic fiddling: Private collection, New York, N.Y. -- Insula Dulcamara: Klee foundation, Bern -- Park of idols: Collection Felix Klee, Bern -- Love song by the new moon: Klee Foundation, Bern -- Embrace: Collection Dr. Bernhard Sprengel, Hanover -- Rock Flora: Kunstmuseum, Bern -- Glass facade: Klee Foundation, Bern -- Captive: Collection Mr. and Mrs. Frederick Zimmerman, New York.

Masters of art.