Available for immediate purchase. This is a can badge with a handwritten autograph by Kotobuki, won in a gachapon machine during the 2014 tour. It has been kept in a bag and stored in a dark place since I won it, but it's been about 10 years, so there is some rust on the back (see second photo). Please refrain from purchasing if you are sensitive to the condition, as it has been stored at home by a private individual.