Gustave Dreyfus [1837-1914], Paris; his estate; purchased 1930 by (Duveen Brothers, Inc., London and New York); purchased 1945 by the Samuel H. Kress Foundation, New York; gift 1957 to NGA.
- Ricci, Seymour de. The Gustave Dreyfus Collection: Renaissance Bronzes. Oxford, 1931: 98, no. 88, pl. 49.
- Renaissance Bronzes: Statuettes, Reliefs and Plaquettes, Medals and Coins from the Kress Collection. Introduction by Perry B. Cott. National Gallery of Art, Washington, 1951: 139, as Oval box in the shape of a toad.
- Sculpture: An Illustrated Catalogue. National Gallery of Art, Washington, 1994: 169, repro.