Osaka University Science Department Mathematics, English, Physics, and Chemistry A 20-year set. Each cover has scratches, and the mathematics cover has wrinkles. Please understand that these are used items stored by a private individual. Thank you for your understanding. Thank you for viewing! ^ ^ Please note that there may be oversights or errors due to amateur measurements and condition checks. Please excuse any wrinkles due to storage or compression during shipping. There are no smokers or pets. Thank you.