Morgan Dry Martini Model 16 Alto Saxophone MouthpieceMorgan Dry Martini Model 16 Alto Saxophone Mouthpiece. The Morgan Dry Martini Mouthpiece Models are designed with M. C. Gregory Models as inspiration. Many of the original Gregory mouthpieces from the 1930s 1960s were available with 3 different core interiors: 16 Small Chamber, 18 Medium Chamber, and 20 Large Chamber. The Dry Martini Model 16 is modeled after the M. C. Gregory 16 Small Chamber Mouthpiece. It produces a traditional tone with more edge