This is one of the (6) Book of Secrets made for the production of the movie. There is 1 Hero Book, 1 Prop Master safety Copy Book and 3 production used book.
This book is fully written with stories, diagrams etc and it is complete with many insert, including the famous Olmek Plank pic, pictures, envelope, newspapers and many other things never seen in the movie (but clearly visible in the bluray special feature).
Last production book (just like this) was sold on propstore for over 40,000$ (including buyers fees).
COA from propmaster
More from National Treasure: Book of Secrets (2007)
