This is a Silky mouthpiece, model 51D. I bought it new and used it with a large-shank euphonium, but I'm selling it because I've changed my main mouthpiece. It has a mellow tone that's quite impressive. There are some minor scratches and dirt, but I think they can be cleaned up with polish. There are no dents. Please feel free to contact me if you'd like to see any specific areas.