For more than 60 years, the Alfred Stieglitz Collection has been the cornerstone of The Metropolitan Museum of Art’s holdings of modern art from the first half of the 20th century. From October 13, 2011, through January 2, 2012, the Museum will present Stieglitz and His Artists: Matisse to O’Keeffe, the first large-scale exhibition of paintings, sculptures, drawings, and prints from Stieglitz’s personal collection, acquired by the Metropolitan in 1949. The exhibition will feature some 200 works by major European and American modernists, including Georgia O’Keeffe, Pablo Picasso, Henri Matisse, Constantin Brancusi, Vasily Kandinsky, Francis Picabia, Gino Severini, Marsden Hartley, John Marin, Charles Demuth, and Arthur Dove. IMAGE SHOWN: Marsden Hartley (American, 1877–1943) Portrait of a German Officer, 1914. Oil on canvas, 68 1/4 x 41 3/8in. (173.4 x 105.1cm). The Metropolitan Museum of Art, Alfred Stieglitz Collection, 1949 (49.70.42). Photo: The Metropolitan Museum of Art