【Features】 The engraving says "Boosey," but the instrument itself is a Besson. It produces a sound that is characteristic of both Boosey and Besson. It responds very well from top to bottom, and is an instrument that is easy to play. Highly recommended for advanced players, as well as junior high and high school students. Because it has a large bell, it offers a wide range of expression, and can handle anything from solo performances to ensembles and large orchestral performances. 【History】 A certain professional player was the first owner and had it for many years. I have owned it as the second owner since last fall. I myself am a musician and a graduate of a music college. 【Condition】 It is in good condition, and you can start playing it right away (though, of course, some getting used to it is necessary). There are no stuck pistons or slides. I haven't made any dents myself, but there are a few very small dents that were present when I acquired it. Some of them have been neatly repaired. None of them affect the performance. The 4th piston slide shows some plating lifting, and it has been evened out at a workshop. Therefore, there are parts where the brass underneath the plating is visible. This also does not affect the performance. The felts were replaced last fall, and the corks were replaced this spring. 【Modifications】 The music stand base on the 3rd piston slide was removed at a workshop. The removed base is included. Also, the shell (mother-of-pearl) of the 1st to 3rd piston buttons has been changed to genuine Prestige buttons (resin). A copper coin has been attached to the 4th piston for sound adjustment. Mead springs are installed in the pistons. 【Accessories】 C.C. Shiny Case II (White) ... I recently obtained a prototype (new). The cushions inside have been adjusted to fit this instrument. *Since it is a prototype, there are traces of glue from removing the fixed cushions on the fabric inside. *Two strap belts are included. Bach | 5G mouthpiece (backbore 800) ... This is a custom-made model. It seems to have slightly better breath intake than the regular model. Marcus Bona | Mouthpiece case ... A leather case that holds two mouthpieces. Oil, grease ... I will include the ones I have been using with this instrument. *There is only a small amount of oil remaining. 【Finally】 I will carefully and safely pack and deliver it. WILLSON Wilson Yamaha YEP 642S Sovereign