【VINCENT BACH CORP. 15】 This is an old model (with "corp." in the engraving), and is said to be from the good old days. The catalog specifications are as follows, but Bach's catalogs sometimes use expressions that feel a bit old-fashioned, so you might want to refer to catalogs from other companies as well. (Modern standard sizes tend to be larger.) ・Inner rim diameter: 16.30mm ・Rim width: Narrow ・Cup depth: Medium ・Characteristics: Moderately small. Good for those with a weak embouchure but who desire a rich sound. There are some scratches and dirt overall, but there are no problems with use.