・Immediate purchase is welcome!! ・Extremely rare vintage!! I am selling the ETERNAL PROGRESS SUPREME-TONE / B♭&C trumpet (in perfect working order, fully cleaned, all maintenance done, and test-played)!! ・As shown in the attached photo 3, you can convert it to a C trumpet by inserting the top of the main tuning slide, which is very convenient!! ・A masterpiece that you rarely come across!! ・I have finished it as an instrument with excellent sound quality and tone, so I highly recommend it to those who prioritize performance!! ・A very rare, now discontinued, vintage masterpiece!! ・It is an ETERNAL PROGRESS SUPREME-TONE / B♭ trumpet!! ・This is a gem that I can confidently recommend, having undergone thorough inspection and test playing!! ・Appearance: There is a dent in the bell, but it has been repaired during maintenance to the extent that it does not affect playing at all!! Also, there are about 3 small dents (not recommended for those who are sensitive to this!!)!! Other than that, there are no dents!! ・Stains have been removed and the instrument has been finished with a complete cleaning for a beautiful appearance!! ・This is an extremely rare instrument that you rarely come across!! ・This instrument can handle all genres!! ・Accessories: Genuine silver-plated mouthpiece, soft case (used) ・I highly recommend it!! ＜Maintenance Details＞ ① Disassemble all parts and thoroughly inspect them. ② Remove old grease, rust, and blackening that cause sticking of all tuning slides. ③ Thoroughly clean all parts and the inside of the tubes. ④ Fully adjust all tuning slides and pistons (lapping performed). ⑤ As a final check, thorough test playing is performed over a period of time.