lower right in black ink: Heinrich Kühn / 1911; center verso in graphite: [?] / 4 1/2 [?]; 5 , [?] 5
The estate of Heinrich Kühn; (Paul M. Hertzmann, Inc., San Francisco, CA, by 1999); NGA purchase, 2000.
- In the Darkroom: Photographic Processes Before the Digital Age, National Gallery of Art, Washington, 2009 - 2010, unnumbered catalogue.
- A Subtle Beauty: Platinum Photographs from the Collection, National Gallery of Art, Washington, 2014 - 2015, unnumbered catalogue.
- An Exhibition of One Hundred Photographs by Heinrich Kühn. Exh. cat. Stefan Lennert Gallery. Munich, 1981: 26, no. 25.