This is a vintage Chedeville Paris “M” hard rubber mouthpiece for clarinet. The mouthpiece is in great shape around the outer body. It shows some signs of past play but nothing major. There is no serious nicks or chips anywhere along the body, beak or shank. The facing of the table, tip and side rails is also in good shape. These Chedville pieces are a popular item for their high quality hard rubber and are often a foundation for having professionally refaced.
This mouthpiece measures 1.10mm”.