I don’t know much about it. I don’t know how to test it so it is untested. There’s no reason why it shouldn’t work. I don’t think but I also don’t know if it does work. I don’t know if it’s missing any pieces it is as is as you see it, there are some marks on the outside of it and other signs of use and age. It is about 27 inches long by 17 inches wide from the tip of the horn to the tip of the mouthpiece in about 6 inches tall it is engraved I don’t know which key it is or tenor.