These horns are terribly underappreciated, but those of us that have played one in proper adjustment, or in this case, after a complete mechanical rebuild, we know just how amazing they are.
These six photos here highlight the extensive dent repair done to the bell. This horn sustained multiple impacts. And then it suffered an unspeakably inadequate attempt at repairing it. The dents were pushed so far out it essentially potatoed the entire bell. You can see the entire slideshow here.