by Georgia O'Keeffe, on mount, upper left verso, in graphite: OK 503A
Georgia O'Keeffe; gift to NGA, 1980.
- Greenough/Hamilton 1983, no. 94.
- Alfred Stieglitz: Known and Unknown, National Gallery of Art, Washington; The Museum of Fine Arts, Houston, 2002-2003, as Georgia O'Keeffe and Donald Davidson.