NASHVILLE Fine Arts Gallery
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NEU-DELHI National Gallery of Modern Art
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NEU-ULM Edwin Scharff Museum
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NEUMARKT IN DER OBERPFALZ Museum Lothar Fischer
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NEUSS Clemens Sels Museum
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NEUSS Langen Foundation
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NEW HAVEN Yale University Art Gallery
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NEW ORLEANS Museum of Art
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NEW ORLEANS Newcomb Art Museum
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NEW ROCHELLE Euro Art Company
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NEW YORK Alien Property Custodian
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NEW YORK Allan Frumkin Gallery
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NEW YORK American Federation of Arts
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NEW YORK Barnard College
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NEW YORK Brooklyn Museum
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NEW YORK Buchholz Gallery - Valentin Gallery
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NEW YORK Carus Gallery
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NEW YORK Catherine Viviano Gallery
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NEW YORK Christie's
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NEW YORK College Art Association
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NEW YORK Columbia University
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NEW YORK DC Moore Gallery
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NEW YORK Durand-Ruel Galleries
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NEW YORK Fine Arts Associates
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NEW YORK French & Company LLC
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NEW YORK Gagosian Gallery
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NEW YORK Galerie St. Etienne
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NEW YORK Galerie Thannhauser
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NEW YORK Grace Borgenicht Gallery
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NEW YORK Grand Central Art Galleries
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NEW YORK Grolier Club
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NEW YORK Guggenheim Museum
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NEW YORK IBM Gallery of Science and Art
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NEW YORK Institute of Fine Arts
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NEW YORK Jan Krugier Gallery
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NEW YORK Jane Wade Gallery
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NEW YORK Jewish Museum
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NEW YORK John Wanamaker - Furniture Gallery
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NEW YORK Kleemann Galleries
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NEW YORK Leonard Hutton Galleries
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NEW YORK M. Knoedler & Company
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NEW YORK MOMA Archives (MoMA-ARCHIVES)
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NEW YORK Marlborough Gallery
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NEW YORK Martha Jackson Gallery
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NEW YORK Metropolitan Museum
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NEW YORK Michael Werner Gallery
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NEW YORK Moeller Fine Art
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NEW YORK Morgan Library & Museum
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NEW YORK Museum of Modern Art (MoMA)
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NEW YORK Neue Galerie
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