W. Chr. Schmidt Bass Trombone Mouthpiece USA 1-1/4G Large shank, silver plated SP ◆ Rim inner diameter: 28.0mm ◆ Throat diameter: 7.0mm Can be used with standard large shank receivers ★ This is a used item, purchased and test-played a few times. 　It shows signs of use, but there are no deformations or major dents, and it does not affect playing. A mouthpiece maker with a workshop in Markneukirchen, Germany. This manufacturer is known for its wide variety and cast construction. The USA series is thought to be designed with compatibility with American-style instruments in mind, and it seems to aim to maintain a German-like tone while matching a powerful and wide blowing feel.