This is a vintage Brilhart Ebolin mouthpiece for Bb clarinet in a 3 facing, serial number 136346. The piece is in good condition showing some light scratching. Its original white bite plate is in good shape as well. There is some cosmetic blemishing on one of the upper parts of the side rails. These pieces are ideal for jazz or wood wind doublers looking for something a bit more open with a bigger free blowing response.
This mouthpiece has standard clarinet tip opening at 1.17mm/.046”.