Key: BbBore: .470-inchLeadpipe: Kanstul "O"Leadpipe Material: Yellow BrassBell: 4-3/4 - inchBell Material: Yellow BrassValves: Monel Piston1st Valve Slide Adjustment: Trigger3rd Valve Slide Adjustment: TriggerFeatures: Hand Hammered One-Piece Bell; Shepherd"s Crook; Hand Lapped Monel Piston ValvesCase: NOMouthpiece: NOFinish: Lacquer, Silver