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B-Trumpet with rotary valves - Classic III

B-Trumpet with rotary valves - Classic III

Valve casing by B. Zirnbauer in nickel silver with German silver valve connections, 11,05 mm bore, tubing in German silver.
Bell diameter Ø 13,0, Ø 13,5, Ø 14,0 optional.
Material thickness of the bell 0,40 mm - 0,50 mm