Mendelssohn, Felix Robert 1896-1951
German cellsit, great-grandnephew of Felix Mendelssohn-Bartholdy.
From the description of Autograph postcard signed, dated : Charlottenburg, 21 January 1923, to Breitkopf & Härtel in Berlin, 1923 Jan. 21. (Unknown). WorldCat record id: 270582172