This is an extremely rare early vintage hard rubber Streamline tenor saxophone mouthpiece. This piece dates back to the 1940s and was acquired from the original owner. There is no serial number stamped on this mouthpiece. It features the Great Neck, NY stamp on the shank as well as the "Designed by Arnold Brilhart" etching on the top.
It is an original 5 and has never been worked on. It is in excellent physical condition.
The sound is beautiful and very unique. It plays darker than the traditional hard rubber pieces, and has great projection thanks to the sleek body design and slightly smaller chamber.