This is a great late vintage hard rubber Berg Larsen alto sax mouthpiece with original ligature. This piece was originally an 80/1 with M facing length, but was later opened by Brian Powell and now measures .088”. The larger tip opening works well with a medium-soft reed and projection is great. Physically the mouthpiece really only shows light oxidation of its hard rubber content and some fine ligature scratches right on top of its body. A very nice mouthpiece.