So basically I have this old book called "The Sinking Of The Bismark". It tells how the famous ship went down. But what's really wondered me about it for a long time is the letter inside. The author of the book is a man named William L. Shirer. To be honest, I've never heard of him. There is a letter inside titled to "Young Reader" as seen in the pictures I've attached. It looks as if it was typed using a typewriter. Then at the end in blue marker, it has a signature of Mr. Shirer. I can't find out any of the tiny dots on it, but hey, you people probably know how to spot a real autograph better then me! And that is the question: Is the autograph Real or Fake? I hope it is authentic. Thanks.