Re: UNIDENTIFIED MAKER TUBA MOUTHPIECE SCREW-SHANKS/BACK-BOR
Posted: Sat Nov 30, 2019 7:15 am
That looks like.....Giardinelli. I have a 3 piece Giardinelli F-21 that I put a large Alexander shank onto so that I can test those Kaiser shank horns when needed. Our Vladimir and Greg Black have continued to use that threading on tuba screw shanks.