This is a used Richard Hawkins hard rubber mouthpiece for Eb clarinet. The tip opening on the mouthpiece measures .039” or .99mm.
The body of the piece is in very good condition. It does show some normal play wear in the forum of light scratches and some faint teeth marks on the beak. There is no major indentations on the beak. The facing profile of the mouthpiece shows traces of past reed placement but is in solid condition.
Pick this one up at a great price.