by later hand, on mount, lower left verso, in graphite: OK 18D
Georgia O'Keeffe; gift to NGA, 1980.
- NGA Stieglitz 1992, no. 60.
- Two Lives: A Conversation in Paintings and Photographs, The Minneapolis Institute of Arts, Minneapolis [Minnesota]; The Museum of Fine Arts, Houston [Texas], 1993.
- Two Lives: A Conversation in Paintings and Photographs (New York, 1992), 130.
- Greenough 2002, cat. 547.