I purchased this E♭ tin whistle made of brass from Kelt no Fueya-san (Celtic Whistle Shop). It's a special key, so I've only used it about twice. I've cleaned and stored it properly. Due to the material of the instrument, the surface will oxidize even during storage, so it doesn't have the same shine as new, but that's part of its character, and I hope the future owner will enjoy developing it further. The purchase price was 25,700 yen. The following is quoted from Kelt no Fueya-san: "An original brand tin whistle, OEM produced by Kelt no Fueya-san, has been born. It boasts the same quality as whistles of the same design sold in Europe, and we have succeeded in keeping the price lower than direct imports. Please enjoy the quality that will satisfy everyone from beginners to professionals." Please consider this if you understand that it has been stored at home!