I only use the Blue Book of Airguns listings to get a baseline for what something might be worth, then go from there. At the end of the day, the real worth of anything you're looking at is what you're willing to pay to get your hands on it, along with actual condition of the rifle. I make the simple guess it's shootable and needs nothing except for pellets. I honestly don't know much about them other than they were supposed to be fancier versions of the D34. Someone who does will have to chime in with that part.That said, here's at least what the Blue Book says about them and again, take this with a grain of salt as to what it may actually be worth: