Bach trombone/euphonium mouthpiece, Megatone 5GS for large shank. This is from the so-called deep period (1970s). It was purchased as a dead stock item, so it is almost new. The condition is very good. *Used only for a test play. The box is also included, but there is some discoloration and tearing due to aging. It seems that it is currently sold for about 40,000 yen at the list price.