This is a later New York vintage metal Otto Link Super Tone Master alto sax mouthpiece, serial number C76. This piece is all original, table stamped a 3* and measuring .060”. It has the double line shank, and is the piece most famously played by Sonny Stitt. It does show a fair amount of finish wear for its age, but physically it is in superb condition with no cracks, chips, or major scratches. The tip and rails are clean and look great.