This is a rare old MC Gregory “Mickey Gillette” model mouthpiece for the alto sax. These vintage Gregory Los Angeles pieces were only available for a short time, and you don't see many of them these days. This one has been professionally opened for today's modern player, measuring as a 6 at .075”. The work is very good and the mouthpiece has an original-like look to it. Physically the mouthpiece is in sterling condition, shows minimal playing wear and no major scratches or nicks. It plays with the traditional dry, West Coast-ish sound.