A brand new Bach trombone mouthpiece, Megatone, for tenor trombones. The model is 6-1/2AL, the most standard size, but the Megatone is quite rare. Megatone mouthpieces for tenor trombones are rarely seen these days. Moreover, this is a valuable item as it's from the Conn-Selmer era and is unused. There are only a few Megatone mouthpieces for tenor trombones available online, and the high-priced ones are around 38,000 yen. It comes with the original box from that time.