Posted by Tony on March 07, 2004 at 09:52:22:
In Reply to: Hirsbrunner Model-21 CC 4/4 posted by O'Dunkun on March 04, 2004 at 21:43:37:
I believe the instrument you have is a HB-1P which was the original CC 4/4 tuba with only 4 pistons. Does it have the weird leadpipe with the loop near the top? If so, it is definitely an HB-1P. They are usually fantastic instruments. Versatile.