I have a very old one of these. I can recall seeing it in a desk drawer back in the 1950's, along with a ball park souvenir knife with a handle like a baseball bat (Probably Dodgers, but not sure), and it was old and worn then. Oddly, this one also never had a loop on the back. I always assumed it had just been pinned together, but now presume that the original wire bale type loop was broken off some time in the distant past. I'm guessing it's from the 1930's some time and probably something my dad had as a kid. I've never found it a terribly useful pocket knife because it tends to foul with pocket lint and the like, and then won't lock open. But despite age it's very sharp, and still occasionally gets used for one thing or another. I gather they have a life time warranty, so I suppose I could send it back, but I kind of like it in its worn, historical context.