Value on these is really hard to pin down since they don't come up for sale that often. I actually like the tone of the Vito version better since it is darker and more robust, not to mention that it doesn't have those annoying adjusting screws and nuts that are so easy to lose that are on the LeBlanc. I am fortunate enough to own two of the altos, as well as one of the very similar Vito altos. In some cases, the mouthpiece is worth MORE than the sax, although that's not typically the case. Everything inside that case has some potential. I suspect the number is actually smaller because many makers will not start their serial numbers at '1' but prefer '101' or higher which seems to provide the illusion of having been produced for some time.Дo you know whether your sax is playable as is? I'm guessing it needs some work, although I have procured saxes before which haven't been played in decades, but spring to life as soon as I blow air in them as if they were repadded yesterday.ДЄlso, does it have any mouthpieces that come with it? These may or may not add to the value of the sax. This estimate is based upon the serial numbers and the highest number ever noted online is under the 1500 mark. The tone tends to be on the bright side, just like Yamahas, but these horns are an incredibly fun horn to play.ДЇrom my extensive research online over the years about these, I have read that only about 1500 LeBlance Semi-Rationale saxes were ever made, and those were mostly altos. LeBlanc saxes are known for their uncanny spot-on intonation. Interesting design and either the first high F# design for a sax or at least one of the earliest. With such a photo, one could point out that it DOES have a high F# key, but it is actuated by the left hand via a rectangle-shaped key between the LH palm keys and the LH pinky cluster.

You've done a nice job of covering the right-hand side of the sax, but NO photos of the left-hand side. It would be nice if you could add a few photos. Fingerings are available on these horns that are not available on other saxes due to the unique key set up. The LeBlanc semi-rationale was never a great commercial success but owners tend to rave about how wonderful they are.

You are in the possession of one of the rarest of all sax models.

Leblanc saxophone serial numbers 051052