by Alfred Stieglitz, on mount, center verso, in graphite: Ex 1932
by Georgia O'Keeffe, on mount, lower left verso, in graphite: 133D
by later hands, on mount, upper center verso, in graphite: [5?]; upper right verso, in blue pencil, circled: D
Georgia O'Keeffe; gift to NGA, 1949.
- Smith, Joel. "How Stieglitz Came to Photograph Cityscapes." History of Photography 20, no. 4 (Winter 1996): p. 325.