[ Arnold Seligmann, Rey & Co., Inc., Paris and New York (sold 1922)] ; William Randolph Hearst American, 1863–1951, New York and San Simeon (1922-1951) ; William Randolph Hearst Foundation, New York (1951-1956)
Los Angeles County Museum of Art. "Hearst, the Collector," November 16, 2008–March 1, 2009.
Monsters, Gargoyles, and Dragons: Animals in the Middle Ages. South Hadley, Mass.: Mount Holyoke College, 1977. no. 35, p. 22.
Levkoff, Mary L., ed. Hearst, the Collector. New York: Harry N. Abrams, Inc., 2008. no. 74, p. 199.