Thank you for viewing. This is a Monette trumpet mouthpiece, LT B4S. It's a model based on Lou Soloff's mouthpiece from the Manhattan Jazz Quintet, and is slightly deeper than a Bach 1-1/2C. It produces a bright and crisp tone, making it an all-around mouthpiece suitable for any genre. There is some discoloration, but it is in beautiful condition with no scratches or dents, and comes with the original box.