lower right in black ink: George Biddle. Rome. 1952.; lower left edge in black ink: 17/24 No. 136. "O what a beautiful morning; O what a beautiful day!"; upper left verso in graphite by unknown hand: $20 / litho
the artist, Croton-on-Hudson, NY; Corcoran Gallery of Art, Washington, DC, 1957; acquired 2015 by the National Gallery of Art
- Pennigar, Martha. The Graphic Work of George Biddle, with Catalogue Raisonné. Washington, DC: Corcoran Gallery of Art, 1979, p. 37, no. 168.