This is a model with a yellow brass bell, a large bore, a wide slide, and the now-discontinued Thayer valve. Both the slide and the valve operate smoothly. It's ready to play as soon as it arrives. It has recently undergone a complete adjustment at a brass instrument workshop. I wanted to keep this model because it's rare to find one in good condition, but I'm selling it due to financial constraints. There are almost no minor lacquer chips or dents, and it's in like-new condition. There are a few stains on the bell rim, but it's minimal. Please check the images and consider purchasing. If you would like additional images or a price reduction, please feel free to comment. It will be shipped in the original hard case, wrapped in bubble wrap. There is no selection certificate.