VINCENT BACH CORP. 7B Cornet Mouthpiece (Likely a deep period) Mouthpieces with the CORP. engraving are known for their excellent sound and rich, well-rounded tone. This model produces a warm and rich sound in the mid to low register, with good response in the high register, making it an all-around versatile choice. They are not very common and are popular. [Condition] - Shank: Shows scratches and plating wear from use. - Rim, Cup: No damage that would interfere with playing.