Thank you for viewing. This is an old book, a Japanese book, that was at my parents' house. I don't know when it's from. I think it's about the multiplication tables, the abacus, and numbers, but I don't know the details. The illustrations of the Seven Lucky Gods using an abacus are unique. I have taken photos of all the contents, so please take a look and make your judgment. There are insect damage, tears, and stains. Please purchase with your understanding. This is an amateur inspection and shipping.