USA

• The Frick Art Museum – Pittsburgh, PA
• The J. Paul Getty Museum, Los Angeles, CA
• The Metropolitan Museum of Art, New York, NY

South America

• The São Paulo Museum of Art, São Paulo, Brazil

Europe:

• Uffizi Gallery, Florence, Italy
• National Portrait Gallery – London, England
• The Van Gogh Museum, Amsterdam, Netherlands
• Musée d’Orsay, Paris, France