Mouthpiece Refacer Extraordinaire and Forum Contri
Can you take a picture showing the shape of the chamber and throat? Based on the pictures so far, I'm guessing it's a very large round chamber on the inside. If so, then I'd call it an Airflow (pre-Soloist). There are some pre-Soloist pieces with a medium round chamber, but as best I'm aware, the horseshoe chamber didn't show up until the Soloist line.