on print, verso, in graphite: White Mat; all on mount: lower left verso, in graphite: A5; by Georgia O'Keeffe, upper left verso, in graphite: 156-B
Georgia O'Keeffe; gift to NGA, 1949.
- Alfred Stieglitz: the Lake George Years, Art Gallery of New South Wales, Sydney, 2010, unnumbered catalogue.
- Greenough 2002, cat. 893.