B&S 3137/2LR-S Challenger II argentata

TROMBA IN SIB ARGENTATA
Key :Bb
Series :Challenger 2
Bore :.459" / 11,66 mm ML bore
Bell :4.803" / 122 mm, #37 one-piece hand-hammered yellow brass, gold brass or sterling silver
Valves :3 top-sprung hand-lapped Monel pistons
Water keys :2 lever-style, forged (main tuning and 3rd valve slide)
Features :Standard or reversed lead pipe, long screw stop on 3rd valve slide, thumb saddle for 1st valve slide, quiet felt valve cap in-lays, o-ring dampeners for 1st/3rd slides
Outfit :Double hard wood-shell case, mouthpiece, valve oil, slide grease, cleaning cloth and rod
Finish :silver-plated