B&S 3136ST-L Challenger II C-trumpet, sterling silver leadpipe, brass body, 11,73 mm (0.462") bore, handhammered one piece Ø 122 mm (4.782") sterling silver bell, monel valves, nickelsilver outerslides, 3rd slide stop screw, 2 waterkeys, clear lacquered, incl. regular- and heavy bottom caps, mouthpiece and prestige case