Originally Posted by
Der Gebirgsjager
You've got it "in hand" and I don't, but my first impression is that you're unlikely to get the pieces separated without bad results. I think I'd just fill in the crack and refinish the stock. Put another way, it's easier to hide the crack than take it apart.
I agree that someone put a lot of time and effort into the sporterizing job. Folks just don't do things like that today. There was a time when money was tight and folks had more time than money. Krags sold inexpensively and lots of them were painstakingly sporterized with results similar to yours. I have several in my collection with pieced in pistol grips, raised combs, custom butt plates, etc. They became kind of an art form. If yours has a good bore you have something worth having.