Posted by Klaus on February 16, 2001 at 20:07:14:
In Reply to: Re: info about double-cup tuba mouthpieces? posted by What is that? on February 16, 2001 at 20:01:28:
A normal bowlshaped cup with a throat so wide, that is almost qualifies for a second funnel shaped cup.
Quite well known from Jettone trumpet mouthpieces.
Klaus