★Super Rare! Excellent Condition ★ Legendary Silver Screw BOSS DS-1 Made in Japan MIJ Serial Number 8200, May 1979 Kurt Cobain ☆ This is a full-width hyphen, silver screw, transparent (skeleton) switch, lamp lights only when stepped on, and op-amp TA7136P, a premium early Japanese-made BOSS DS-1, serial number 8200, made in May 1979. This is a Japanese-made DS-1, famous for being used by Kurt Cobain. While there is much documentation of Kurt using a black screw DS-1, a silver screw unit was also used in a session with John Peel, the legendary BBC DJ, on September 3, 1991, about three weeks before the release of the album "Nevermind." This unit was recently listed on an overseas auction, so we highly recommend adding it to your collection along with the black screw version. Operation has been confirmed with both ACA adapter and battery. There is no scratchiness in the knobs, and the sound output is excellent. There is little wear and tear overall, and the paint still has a good shine, making it an excellent condition unit that doesn't look like a vintage item. The pedal guide and bushings have been replaced with new ones, so you can use it immediately. As the first distortion pedal from BOSS, you might imagine a light distortion, but as the silver screw era vintage is particularly popular, the sound, which was created with the aim of achieving the distortion of a high-gain Marshall, has a deep amount of distortion and realism that is still relevant today. When you hear the sound for the first time, you will be very impressed by the easy-to-use, natural amp-like quality and the pure sound quality. Please use a Japanese-made DS-1 for the covers of NIRVANA's early albums "BLEACH," "NEVERMIND," and "INCESTICIDE." The famous NIRVANA Kurt Cobain setting is with the amp clean, TONE: around 10 o'clock, LEVEL: MAX, DIST: MAX. It would be great if the popularity of NIRVANA Kurt Cobain was also due to the power of the Japanese-made BOSS. Free shipping, instant purchase OK. As this is a valuable effector, we will pack it with cardboard and bubble wrap with the utmost care, so please consider it. NIRVANA fender gibson marshall