[ Alfredo Barsanti, Rome]; George and Florence Blumenthal, Paris and New York (by 1921–until 1941)
Rubinstein-Bloch, Stella. Catalogue of the Collection of George and Florence Blumenthal, New York: Volume 2, Sculpture and Bronzes, Mediaeval and Renaissance. Paris: A. Lévy, 1926. pl. XXVIII.
Castelnuovo-Tedesco, Lisbeth, and Jack Soultanian. Italian Medieval Sculpture in The Metropolitan Museum of Art and The Cloisters. New York: The Metropolitan Museum of Art, 2010. no. 58, pp. 285–287.