This is a classic metal Brilhart Level-Air mouthpiece for the alto sax, serial number 71374. This piece is an original 5, with tip opening measuring .080”. These are great pieces for players looking for their first big, bright-sounding mouthpiece. It features a high shelf baffle, which really focuses your air and gives you an edgier tone. The piece shows only minor surface scratching and no finish wear at all, even on the table as is fairly common on these metal Brilharts. There is also no teeth wear on the black bite plate, which is rare. Tip and rails are perfect.