Alfred Stieglitz: „Equivalent“, 1925, 11,8 x 9,1 cm (aus: Sarah Greenough, Alfred Stieglitz. The Key Set. The Alfred Stieglitz Collection of Photographs, Washington. National Gallery of Art, New York: Harry N. Abrams, 2002, Vol. 2: 1923–1937, S. 638)	Fenster schliessen