The image of "His Portrait" reproduced in Bickerstaff's text and the Parke-Bernet Galleries 1968 sale catalog, appears to be a cropped version of the painting. It does not include the painting at far right shown in the Juley photograph.
Bickerstaff, Laura M., "Pioneer Artists of Taos," Denver, CO: Old West Publishing Co., revised and expanded edition, 1983.
Parke-Bernet Galleries (New York, NY), sale no. 2688, 1968, lot 85.
"Exhibition of the Recent Paintings by Walter Ufer: The Corcoran Gallery of Art, Washington, D.C., from Dec. 7, 1922 to Jan. 1, 1923," (exhibition pamphlet).