This is a Johannes Gerber “Vintage Slant” series mouthpiece for the tenor sax. This piece looks to have only been play tested and is in pristine original condition. Designed after the old Slant Links obviously, it has a large round chamber and even shows the 90 degree drop off towards the beak. Gerber hand makes his pieces and you won't find a cleaner looking pieces, tip and rails are perfect. This piece shows no wear, and is stamped a 9, measuring .120”.