A classic cornet mouthpiece, a London-made Denis Wick mouthpiece, model 3 (silver-plated). The inner rim diameter is about the same as a Bach 3. It has a deep cup, producing a warm, cornet-like sound. For detailed dimensions, playing feel, and sound, please search on Net Brass. It has some signs of use, but there are no major scratches or dents that would affect playing. Please refrain from price reduction comments. Instant purchase is OK. If you are interested in used or new mouthpieces, please search on Net Brass. net-brass.com