Has the same cup as No.17, but a wider rim. Players of the old Italian or English school having heavy, soft lips and a rather sensitive embouchure choose this model. Vincent Bach was a rare combination of artist and engineer. A mechanical genius and acclaimed trumpet soloist, his instruments and mouthpieces are used today in every major studio and orchestra in the world. Bach personally designed the tools and composed the plans that continue to set the high standards for making all Bach products today.