The piece is marked B but was opened to an E by Ed Pillinger who is a tremendous mouthpiece artisan and refacer from the UK. The piece is marked ep 6 M which, from checking the facings on Eds site, appears to be a Selmer E. Im playing something else now. This piece has that Soloist vibe but with the openness and immediacy of a Meyer if you know what I mean. Please feel free to write with any questions.The item "Selmer Long Shank Soloist Style Alto Sax Mouthpiece E (Pillinger Reface)" is in sale since Saturday, May 2, 2020. This item is in the category "Musical Instruments\Wind & Woodwind\Parts & Accessories\Mouthpieces". The seller is "kirks1963" and is located in Tunbridge Wells. This item can be shipped to United Kingdom.