| Hi,
The mandrel used was the one the maker once used to make the bell on a _____. If one remembers, the _____ had a 4 7/8" bell.
Since some "super horns" have bells over 5," Kanstul simply made the new bell 5 1/4.
Alex will have to tell you which bell he had 'em borrow the mandrel from. Don't hold your breath.
Tom |