Smithsonian American Art Collection, Photograph Archives, Peter A. Juley & Son Collection, J0123294.

1. Dr. Otto Binswanger. Medallion. Jena, Germany.

Otto Binswanger (1852-1959) was a Swiss psychiatrist who worked at the University of Jena in Germany. Friedrich Nietzsche (1844-1900) was one of his patients. This portrait was executed in 1906, while Brenner was in Europe.