by later hand, lower right verso in black ink: LA129
(Charles Isaacs Photographs, Malvern, PA); purchased with donated funds by NGA, 1997.
- Building a Collection, National Gallery of Art, Washington, 1997-1998, no. 86.
- Photographs from the Collection, National Gallery of Art, Washington, 1999.
- Lloyd, Valerie. Photography: The First Eighty Years. London, 1976: p. 17, no. 23.
- Schaff, Larry J., ed. H. Fox Talbot's "The Pencil of Nature": Anniversary Facsimile. New York, 1989: p. 68, fig. 36.