(Helen) These were NOT made by Keilwerth. To the best of my knowledge Herb Couf had Armstrong make these for him. 

So the take away is simiple: Not all H.Couf saxophones were built equally, and certainly not all were built by Keilwerth. When shopping for a H.Couf saxophone, become an educated shopper before you spend your hard-earned $$. These may be decent horns, but they are student, not pro, or even intermediate horns.