Purchased new about a year ago and used with a Yamaha custom euphonium. The size is about the same as a Bach 5, with a deep cup. Produces a very dark tone. Currently costs nearly 40,000 yen new. For large shank. No noticeable scratches or dents. Feel free to negotiate the price or ask questions. This is a custom mouthpiece designed and made by Carl Hammond, who has a background as a custom mouthpiece craftsman at the Silke company. With a wide variety of lineups and high manufacturing technology, it is used by players all over the world, including John Hagstrom, a trumpet player with the Chicago Symphony Orchestra. ■ Rim 12 Cup inner diameter: 25.7mm Models: 12M, 12ML, 12L, 12XL Similar rim products: Schilke 51 / Bach 5 ・XL... A deep cup designed for euphonium, characterized by a dark tone.