Albright-Knox Gallery, Buffalo, New York, U.S.A.

Caixa de Pensions, Barcelona, Spain

Bayerische Staatsgemäldesammlungen, Munich, Germany

Solomon R. Guggenheim Museum, New York, U.S.A.

Kunsthaus Zurich, Switzerland

Pan American Union, Washington D.C., U.S.A.

Musee des Beaux Arts, Zürich, Switzerland

The Hirshhorn Museum & Sculpture Garden, Washington, DC, U.S.A.

Wallraf-Richartz-Museum & Museum Ludwig, Cologne, Germany

Museu de Arte de Säo Paulo, Brazil

Museu de Arte Moderno, Rio de Janeiro, Brazil

Museo de Bellas Artes, Caracas, Venezuela

Kunsthalle, Nuremberg, Germany

Museo de Arte Contemporäneo, Madrid, Spain

Museo de Arte Moderno, Buenos Aires, Argentina

The Metropolitan Museum, Miami, Florida, U.S.A.

Museo Nacional de Bellas Artes, Montevideo, Uruguay

The Litchfield Historic Museum, Connecticut, U.S.A.

The Bruce Museum, Greenwich, Connecticut, U.S.A.

Museum of Art, Science & Industry & Planetarium, Bridgeport, Connecticut, U.S.A.

The New Brunswick Museum, Saint John, Canada

Museo de Bellas Artes, Santiago de Chile

The Phillips Collection, Washington, DC, U.S.A.

Indianapolis Museum of Art, Indianapolis, Ind. U.S.A.

Everson Museum of Art, Syracuse & Onondaga County, NY, U. S.A.

Nationalgalerie, Staatliche Museen Preussischer Kulturbesitz, Berlin, Germany

Museum Moderner Kunst, Vienna, Austria

Fundação Calouste Gulbenkian, Lisboa, Portugal

Hara Museum of Contemporary Art, Tokyo, Japan

National Gallery of Art, Washington D.C., U.S.A.