ヤフオク見てたら過去にサイン本が売られてたのを見付けたので
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0103/users/d1c323a338ff599a21233d552898349c4fc9e6f5/i-img902x1200-1583841300nzqth7450110.jpg
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0103/users/d1c323a338ff599a21233d552898349c4fc9e6f5/i-img916x1200-1583841398jiepel435954.jpg
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0104/users/15f1a5679f6454731e9a363fae4278b99a94aefc/i-img1200x900-1587906771ge7dg233882.jpg
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0104/users/15f1a5679f6454731e9a363fae4278b99a94aefc/i-img900x1200-1587906523fotvx9187645.jpg
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0104/users/15f1a5679f6454731e9a363fae4278b99a94aefc/i-img1200x900-1587906645bbe9jg187717.jpg