Schilke XA1 medium bore copper bell. These are fabulous instruments. Such a beautiful sweet and singing tone. This instrument is in very good condition. It has not been play much at all. I think it's serial number indicates that it was manufactured in the early to mid 2000's. It has been handled. There are a very few light scratches. And it had a dent in the bell crook smoothed out. Over all it looks very good and presents well.