A set of specialized journals on balance and balance science published from 1971 to 1972. - 1. Title: Kinsei (Organization Journal) - Issue Numbers: No. 1 to General Issue No. 4 - Publication Year: Reissued in 1988 (Showa 63) - 2. Title: Kinsei - Issue Number: No. 27 - Publication Year: 1971 - 3. Title: Kinsei - Issue Number: No. 28 - Publication Year: 1972 - 4. Title: Kinsei Kagaku (Balance Science) - Issue Numbers: No. 1 to No. 4 - Publication Years: 1986 (Showa 61), 1987 (Showa 62), 1989 (Showa 64), 1989 (Heisei 1) Thank you for viewing. The contents are clean, but there is some yellowing on the edges due to long-term storage. There are stains from deterioration on the cover. I have checked them once, but there may be some writing inside. Please be aware that there may be a signature of the owner in some parts. I hope this will be helpful for those studying Kinsei. I will also be listing other old training course texts, so please take a look. If you purchase them all together, price negotiations are also possible, so please feel free to contact me.