I have an old Bali that if I was to guess, is about 13 to 18 years old. It has brass hardware and bone handles. It also came in a black cordura sheath that came in a wooden box with a sliding lid. I've never used the knife, although a probably sharpened it when I got it. The sheath is a new. It has never been carried or used. I also still have the box, although I've kept sharpening stones in it in the garage, so its a little dirty. Not certain if the Box makes it more attaractive to collectors or not. I don't have it in front of me, so I can't say if it has serial numbers on it or not. Can anyone provide a ballpark as to worth?