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Dual bore .481" / .491" = 12.
2 / 12.
4 mm.
Yellow brass bell Ø 7.
5'' = 190 mm.
Hard chrome-plated nickel silver inner slide.
Nickel silver outer slide.
Clear lacquer finish.
Original VINCENT BACH 12C mouthpiece and slide grease.
Light weight case with rucksack assembly.