DOYLE, Sir Arthur Conan, letters, autographs, documents, manuscripts Home | Archive | Facsimiles | Forgeries | Back DOYLE, Sir Arthur Conan (1859-1930). Creator of Sherlock Holmes. Signature ('A. Conan Doyle. MD') evidently from the foot of a letter (a little stained, but bold and clear). [No: 24138] This is the archived description of an item that has already been sold. Please contact me if you would like any further intormation.