Trumpet Mouthpiece IRVING BUSH N4

There are minor, unnoticeable scratches on the rim that do not affect playability. I believe the condition is good. There is no plating peeling. Size: Cup inner diameter approximately 15.5 mm, depth M. This is roughly equivalent to a Giardinelli 12M. A characteristic is that the cup edge is clearly defined, which I feel leads to good responsiveness. This is a USA brand with professional users. Try it while you have the chance!