Christian Lindberg valves make the lower register free-flowing and easier to navigate. Interchangeable lead pipes and dual .562"(main)/.580"(valve section) bore give the horn a more live "conical" feel. After market 10.5" Benge bell added by Cleveland's own J.C. Sherman, delivering a larger, darker sound with a flexible character. Played for 4 years (2006-2010) in orchestras & jazz bands during college, I no longer play the horn and want to see it go to a good home. Lacquer on the bell is missing/thin in spots, with superficial tarnish. Hand contact on slide and neck contact on valve attachments has removed some lacquer and shows some superficial corrosion. Slide is in reasonable shape 8/10. Ships in original case (which has broken zippers) to the lower 48 with a few extra bits + pieces (including extra Gb trigger assembly). Please email firstname.lastname@example.org with any questions. $3,500 + Shipping OBO.