Posted by Rob PM on April 04, 2002 at 09:38:41:
In Reply to: Re: Info about 4 valve sousaphones posted by Frederick J. Young on April 03, 2002 at 15:38:37:
The horn you describe sounds like a 48K. The standard bell size for the 48K was 30" or 32", 34" would have likely been a custom sized bell. As I understand it only a few dozen of them were ever made. There was a 3 valve version of the same Jumbo body (model #??K) which Harv's Happy Horns was selling on E-bay last year.