Posted by Christian Klein on January 06, 2003 at 07:02:41:
In Reply to: Re: Re: Re: Hirsbrunner "nylon" rotors posted by Christian Klein on January 03, 2003 at 12:15:32:
To actually help with the question that was asked to start this thread:
That auction specified that that tuba was made in 1983. While that doesn't answer the question, it might give you an idea. You might want to call Custom Music or contact Hirsbrunner directly to get the best answer.
Cheers,
Christian Klein