This is a classic vintage hard rubber Buffet Crampon Paris mouthpiece for the Bb clarinet. This piece is table stamped a G8, and measures about .047”. The hard rubber has oxidized a bit with time to a darker brown color, evidence or the pure rubber content. Physically the piece has one small nick on the right side of its body, but no other major wear of note. The tip and rails are in pristine shape and are original. We will replace the cork so it is new when the mouthpiece ships. A nice vintage Buffet piece for those players that want something a hair more open.