This is a true “no USA” Florida vintage metal Otto Link Super Tone Master mouthpiece for the alto sax. This particular model is often called the “Sonny Stitt” piece since he played on this version. This one was originally a 6, but at some point in its life it has been refaced and now measures more open, closer to .093”. The piece is in great shape, with newer silver plating in near perfect shape and only minor finish wear inside the body of the piece and around the tip and rails. The larger tip opening works well with a softer reed, and the piece plays with a full body and a lot of presence.