Reading Clancy's The Sum of All Fears (have never seen the movie), and came across an interesting passage:

"The picture that appeared simultaneously on the booth monitors and TV sets all over the world showed the conference room. In it was a large table all of whose seats were filled. At its head was the Pope, and before him was a folder of folio size, made of red calfskin—the reporters would never know of the momentary panic that had erupted when someone realized that he didn’t know what kind of leather it was, and had to check with the supplier; fortunately,no one objected to the skin of a calf."