by Alfred Stieglitz, on mount, lower left verso, in graphite: K2 [2 in superscript]
by Georgia O'Keeffe, on mount, upper left verso, in graphite: 231E
by later hand, on mount, lower right verso, in graphite: 3
Georgia O'Keeffe; gift to NGA, 1949.
- Alfred Stieglitz: Known and Unknown, National Gallery of Art, Washington; The Museum of Fine Arts, Houston, 2002-2003, as Equivalent K2.