One of the finest, most selective private collections of works by the first wave of American modernists will premiere at the National Gallery of Art, East Building, from May 16, 2010, through January 2, 2011. 'American Modernism: The Shein Collection' presents 20 masterpieces by Patrick Henry Bruce, Stuart Davis, Charles Demuth, Arthur Dove, Marcel Duchamp, Marsden Hartley, John Marin, Georgia O'Keeffe, Man Ray, Charles Sheeler, and other renowned artists. The collection demonstrates the importance of the early American modernists in the development of the avant-garde in the United States and Europe during the 20th century.