BBb Tuba BB650 BB650, CG Conn Brass. Bore: .661 inch = 16.8mm. Bell: ⌀. 14 3/8 inch = 366mm. Brass body. Gold brass leadpipe. Nickel silver outer slides. 3-valve top action. Stainless steel valves. Original VINCENT BACH 25 mouthpiece. Lightweight molded case with wheels. Weight: approx. 5.8 kg. Finish: Clear varnish. . .
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