Around 14 years old brushed Series III Selmer tenor saxophone

It's a brushed Selmer Series III tenor saxophone and it's almost 15 years old. Aesthetically it's not in good shape. It has quite some dust lying around, and some parts suffer from rust and green verdigris (especially the lower F-key). The neck has some rust spots on the lower side. The bell has a few smaller bumps on top where folds out. It sounds great though and is pretty tight, although some pads are a bit worn. The mouthpiece is a hard rubber Meyer that's pretty worn in the sense of a greyish color change outside on the sides and light brownish inside. It has a protector in form of a plastic pad place where the teeth bite. It was in a black and blueish/purple worn soft bag, as old as the horn, of which the zipper broke long time ago, so it has been closed by the use of big rubber bands of the kind you use for bicycles. The bag is shaped as a box, so not one of those that are shaped like the horn.