Key: F/Bb Bore: .472-inch Bell: 11.9-inch Bell Type: Fixed Bell Throat: Medium Bell Material: Yellow Brass Leadpipe: Fixed Leadpipe Material: Rose Brass Wrap: Geyer Linkage: Mechanical Features: Rose Brass Leadpipe; Mechanical-Link Tapered Rotary Valves; Nickel Silver Slides Case: Wood Frame Mouthpiece: Yes Finish: Lacquer