BACKHAUS, Wilhelm, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back BACKHAUS, Wilhelm (1884-1969). Pianist. Signature ('Wilhelm Backhaus / Darlington, October 30th 1907') on a pink sheet, ca 180 x 70 mm (7 x 2½ inches), with note of identification. [No: 5671] This is the archived description of an item that has already been sold. Please contact me if you would like any further intormation.