Roman Bronze Works, New York (until mid-1980s; sold in mid-1980s to Lobell); Carl D. Lobell, New York (mid-1980s–1995; his gift to MMA)
New York. The Metropolitan Museum of Art. "The Human Figure in Transition, 1900–1945: American Sculpture from the Museum's Collection," April 15–September 28, 1997, extended to March 29, 1998, unnum. brochure.
Joan M. Marter in American Sculpture in The Metropolitan Museum of Art. Ed. Thayer Tolles. Vol. 2, A Catalogue of Works by Artists Born between 1865 and 1885. New York and New Haven, 2001, pp. 686–87, no. 323, ill.
Julia Day et al. Gaston Lachaise: Characteristics of His Bronze Sculpture. Cambridge, Mass., 2012, pp. viii, 64, call it "Torso (back)".