I got this crystal clarinet mouthpiece from a friend, and its AMAZING I mean I love it, it works so well for me, I used to play in a just broken B45, so I need a new mouthpiece I realy like B40, but when I try this one, I´mean I was so wondered of the tone quality and also the volume with this one...but I dont now what is the brand or the maker, I thought that was an 1980´s O´Brien but it doesn´t macht the signature in the picture with the one in the the board I think that it says "Leblanc" but is hard to read, please help me to indentified this mouthpiece. sube imagen jpg subir imagenes gratis