By A Mystery Man Writer
The Bach 5G Trombone Mouthpiece has the same rim shape and diameter as the No.5 model, however features a deeper cup, .276 throat and 429 backbore.
Large Shank Trombone Mouthpiece with 5G Cup, Deep Depth, 25.50mm Cup Diameter, Medium-wide Rim Shape, 0.276 Throat, 429 Backbore, and Gold-plated Rim
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3415G Bach 5G Artisan Trombone Mouthpiece, Small Shank, Model no. , Depth of Cup, Approx cup Diameter, Description, 6 1/2A, Medium Deep, 25.40mm,
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