Most of us do not have the luxury of handling/studying original rifles, so these CD's are the next best thing. And in a way, they are better than having the original in your hand, though of course, there is an unexplainable pleasure and value in that. With the CD, you can stare at the image for as long and as often as you need to, to understand it. With the original, unless you get to keep it for some time, that is usually impossible.
God Bless the Kentucky Rifle Foundation!
...and very cool rifle Tom!