upper left in graphite: 21/50 Fossombrone; upper right in graphite; Carol Summers
(Associated American Artists, New York); Corcoran Gallery of Art, Washington, DC, 1965; acquired 2015 by the National Gallery of Art
- Summers, Carol. Carol Summers: Catalogue Raisonné, Woodcuts 1950-1988. Milwaukee, WI: David Barnett Gallery; Boston, MA: Randall Beck Gallery, 1988, p. 26, no. 37.