This vintage Bach New York #7 trumpet mouthpiece is a must-have for any musician looking for a hard to find Bach New York mouthpiece. Crafted for the trumpet and made by the well-known brand Vincent Bach, this mouthpiece is a great addition to your collection. I do not know a lot about this mouthpiece.  It might have been made for a cornet.

　　Maybe you can research it before you bid on it.