Georgia O'Keeffe; gift to NGA, 1949.
- Photographs by Alfred Stieglitz, National Gallery of Art, Washington, February 3–May 8, 1983, no. 166; Metropolitan Museum of Art, New York, June 17–August 14, 1983; The Art Institute of Chicago, October 18, 1983–January 3, 1984.
- August Sander Archiv/SK Stiftung Kulture, Cologne, Germany, 22 May-10 August 1997.
- Alfred Stieglitz: Known and Unknown, National Gallery of Art, Washington; The Museum of Fine Arts, Houston, 2002-2003, as Water Tower and Radio City, New York.
- Greenough, Sarah, and Juan Hamilton. Alfred Stieglitz: Photographs and Writings. Washington, 1983: no. 166, pl. 69.