VINCENT BACH CORP. 5A Cornet Mouthpiece (Old Engraving) Mouthpieces with the CORP. engraving are said to have a good sound and produce a rich, well-rounded tone. This mouthpiece has a slightly large cup, characterized by a dark, soft, and rich sound. [Condition] ・Shank: Shows scratches and plating wear from use. ・Rim, Cup: No damage that would interfere with playing.