Arthur Conan Doyle Letter - Yes or No

Letters from Conan Doyle can be found with some frequency, many of them actually written by Conan Doyle, but also some written by one of his secretaries; one of those secretaries was Alfred H. Wood, and here is one of the letters he wrote for Conan Doyle. Wood carefully added a tiny “W” to the signature to show that the letter was not written by Conan Doyle.