[ Autograph ] Arthur Conan Doyle 1859-1930 English author and Spiritualist remembered for his creation of the immortal Sherlock Holmes and his friend Dr. Watson. A.L.S. 1p. 12mo., [England], Nov. 4[n.y.] In part: '...Your letter gave me real strength. If I think I am really doing good it is easier to carry on. Yours very truly, A. Conan Doyle." Two rough edges not affecting text, otherwise very good