This is an earlier series gold plated Peter Ponzol M1 series mouthpiece for the tenor sax. Stamped a 105, it measures true at .105”. While much of the original gold has worn with time, exposing the silver plating underneath, there is little other wear to speak of. The tip and rails are flawless and the beak has long been protected by a guard. This piece features a long medium-high baffle and plays with a lot of edge and power.