This is a rare handmade Dave Guardala King Curtis series mouthpiece for the alto sax, serial number 933. This piece is all original and measures .095”. Besides the regular finish wear you almost always see on these older handmade Guardala's, the mouthpiece is in outstanding physical condition. There is only a single very light indentation in the original bite plate, and the tip and rails are in flawless shape. It comes with a fitting 2 screw ligature and Francois Louis Smart Cap.