Rosenthal, Moriz. (1862–1946) Signed Photograph with Interesting Letter on versoScarce original Mishkin postcard photograph of the great pianist, signed and dated 21 April, 1933 across a hand drawn musical staff below the image. On the verso, Rosenthal has penned a short but interesting letter, in full: "Dear friend Adler, I understand fully the bad situation in U. S. A. and decided not to come this season. At the N. B. C. works Levine, the brother of Lewitzky, who scarcely answers my letters. Meanwhile I had the greatest success