I have. That was the first book that I bought because it was so available. Thanks. The other one is just the best picture of the wing spar out there. It's even better than the blueprints.
I saw a picture from the Aviation Sketchbook of Design Detail on this website about a year and a half ago. I took a screenshot of it so I wouldn't lose it. I thought it would be easy to get this book, but wow was I wrong. I can't hardly even find any information on it.
I have the second and...