Charles DARWIN (1809-1882) Autograph letter signed to a Viennese doctor. No place, May 31, 1879. Brown ink on paper headed "Down, Beckenham, Kent." 1 page and stamped envelope with postmarks. "Dear Sir, I am much obliged for your courteous note & for the curious case of inheritance." Small folds, stains and tears to envelope. Provenance: Signatures Gallery, Paris. A copy of the certificate of authenticity will be given to the future buyer.