Backhaus, Wilhelm. (1884–1969) [Hanfstaengl, Erna. (1885–1981)] Signed Photograph to Erna HanfstaenglLarge format original portrait photograph of the German pianist, who has boldly signed and inscribed to the lower mount in ink: "My most warm regards to my esteemed friend Frau Hofrat Hanfstaengl Wilhelm Backhaus" and dated May 1, 1936. In fine condition, mount with verso borders reinforced, signed by the photographer lower right in pencil "Veresky"(?). Portrait 6. 8 x 9. 25 inches (17. 3 x 23. 5 cm.); mounted to an overall size of 10. 25 x 13. 3