Two horses sniffing each other

Atelier Degas - Vente Degas, 1919, III, n° 47.1 (repr.) - Robert Sterling Clark - Sterling and Francine Clark Art Institute, 1955.

Williamstown, Clark Art Institute, 1959, n° 33, pl. XVIII - Williamstown, Clark Art Institute, 1970, n° 30  (repr.) - Williamstown, Clark Art Institute, 1987, n° 51, repr. p. 66 - Washington, National Gallery of Art, 1998, n° 92, repr. p. 152.

Lemoisne, 1946-1949, II, n° 662, repr. p. 375 - Haverkamp-Begemann, Egbert, Standish D. Lawder et Charles W. Talbot, Jr. Drawings from the Clark Art Institute: A Catalogue Raisonné of the Robert Sterling Clark Collection of European and American Drawings, Sixteenth Through Nineteenth Centuries, at the Sterling and Francine Clark Art Institute, Williamstown, New Haven, Yale University Press, 1964. Sterling and Francine Clark Art Institute. Exhibit Ten: Degas. Exhibition catalogue. Williamstown, MA: Sterling and Francine Clark Art Institute, 1959. Sterling and Francine Clark Art Institute. Exhibit Thirty: A Selection of Nineteenth Century French Drawings. Exhibition catalogue. Williamstown, MA: Sterling and Francine Clark Art Institute, 1965. Sterling and Francine Clark Art Institute. Edgar Degas (1834-1917). Exhibition catalogue. Williamstown, MA: Sterling and Francine Clark Art Institute, 1970. Fernandez, Rafael, and Alexandra R. Murphy. Degas in the Clark Collection. Exhibition catalogue. Williamstown, MA: Sterling and Francine Clark Art Institute, 1987. Washington, National Gallery of Art. Degas at the Races. (Cat. de Jean Boggs), 12 avril-12 juillet, 1998.