The Horn Guys is open twice weekly for shipping and order pickup. Please contact me by email. -Steve
The Marcus Bonna order for (late) December delivery is fixed.
Kanstul 2-Piece B-Series Trumpet Mouthpiece Backbore
Here are remaining sizes of threaded backbores for 2-piece Kanstul Bach-style mouthpieces. Matching cups are available here. Numbers correspond to standard Bach dimensions. In silver plate, limited supply.
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