B&s gr51 series 4-valve 4/4 bbb tuba gr5… #6063r

B&S Gr51 Series 4-Valve 4/4 Bbb Tuba Gr51-S SilverB&S Gr51 Series 4-Valve 4/4 Bbb Tuba Gr51-S Silver
The B&S GR51 is a BBb-Tuba in 4/4 size with a .748″ bore and a 17.716″ bell. It is constructed of yellow brass and features 4 rotary valves (right) and a clear lacquered finish.
B&S B&S Gr51 Series 4-Valve 4/4 Bbb Tuba Gr51-S Silver GR51-S Brass Instruments, Tubas, Bb Tubas

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B&S Gr51 Series 4-Valve 4/4 Bbb Tuba Gr51-S Silver