Inscription: Signed in pencil, recto, below image at right: "Harry Callahan"; signed and inscribed in pencil, verso, UC: "Harry Callahan 198 P S-86"
The Metropolitan Museum of Art. "Photographs from the 1940s and 1950s: Selections from the Collection," December 18, 1990–March 17, 1991.
Szarkowski, John, ed. Callahan. Millerton, N.Y.: Museum of Modern Art, New York, 1976. p. 86.