Thank you for viewing. "Cog-Train Puzzles Devised by a Doctor" Koji Miyaguchi Price: ¥1210 Shipping will be via "Yu-Yu Mercari Delivery". ● Condition: Purchased from an online bookstore and read only once without removing the cover. It has been stored at home since then. ● There is a scratch on the corner of the cover. Please check photo 3. Also, there is dirt and fine scratches on the back cover. Photos 4 and 5. The cover has never been removed. As this is a used item, we would appreciate it if those who understand this would consider purchasing it.