This is a vintage hand made David Gaurdala tenor mouthpiece, Michael Brecker model, serial number 2675. The mouthpiece does show some cosmetic wear to the plating, this is fairly typical among this vintage. There is a slight tooth indentation on the bite plate area of the beak but nothing to serious. This mouthpieces tip, rails and table are all in very pristine condition showing little to no wear. The inside of the mouthpiece features a shallow floor and a drop down baffle. It measures out as 7 at around .099". These pieces are definitely brighter players and are know for putting out a lot of volume.