Scottish author (1859–1930) whose stories featuring fictional detective Sherlock Holmes revolutionized the genre of crime fiction. Holmes himself would eventually earn a place among the most familiar and durable characters in the annals of English literature, and his exploits would inspire countless incarnations on stage and screen. ALS signed “A. Conan Doyle,” 4.5 x 3.5, April 31. Doyle writes to Mrs. Anley. In full: “I should have very much liked to have seen the General and you but I am stuck down here for the week & can’t get up to town. I hope he is very well. I am so very glad you both like the history. If he cares to blue pencil any of it I should be very interested. I sent him a copy out to France of this number….” In addition to his famed Sherlock Holmes tales, Doyle wrote a number of volumes on military history. British officer Barnett D. L. G. Anley (1873–1954) is mentioned in at least two: The Great Boer War (1900) and The British Campaign in France and Flanders (1916). Accompanied by the original mailing envelope addressed in Doyle’s hand. In very fine, fresh condition. R&R COA.