DOYLE, Sir Arthur Conan, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back DOYLE, Sir Arthur Conan (1859-1930). Creator of Sherlock Holmes. Fine full signature 'Yours sincerely / Arthur Conan Doyle', dated 17 October 1923, on a large piece of cartridge paper. [No: 21011] This is the archived description of an item that has already been sold. Please contact me if you would like any further intormation.