This is an original Otto Link Slant Signature Tone Edge 9* tenor mouthpiece of the Florida vintage. This is an incredibly rare mouthpiece!!! Slant Sigs in general are very rare, but finding one with this big of a tip opening is nearly unheard of. The piece measures out to .124", and has more power than pretty much any hard rubber Link we have ever come across. What a great example of a really rare vintage Otto Link.