Thank you for viewing. This is a Dukoff alto saxophone mouthpiece. The model number is D8. It was included when I purchased another instrument about 25 years ago, so I am not a specialist. Please only purchase if you can judge from the images. There are scratches, scuffs, and signs of use, but there are no major scratches or dents that would interfere with playing. There is stickiness from the mouthpiece patch residue. Please refrain from comments asking for a price reduction. Thank you for your consideration.