Do you own an antique saxophone?
I only have one truly antique saxophone and it is a very rare Eb Sopranino Saxophone made by Buffet, probably sometime in 1910 or 1920. I used to play it many years ago and it has a very interesting and unique sound because it plays in a very high range (above a Bb soprano saxophone), but it needs a complete overhaul so nowadays I use it more as a museum piece.
I also have a couple of Albert system clarinets and bass clarinet that are also antique, probably from the late 1800’s. Albert system was a totally different fingering system for the clarinet than the modern day clarinets which is the Boehm system.