The third of the official Japanese Armour Society (Nihon Katchū Bugu Kenkyū Hozon Kai – NKBKHK) books with pictures and descriptions of the next 130 jūyō graded armours and samurai related items (#261-#390). Overall, the quality of the black and white pictures has increased although some are still too small or of not good enough quality. Most items are from the Edo period. Most items are tucked away in private collections, so this book is for many of these probably the only way to get some documentation.
In total 5 books exist (as of 2014) in this series. All of them were quite expensive when published as they were printed in very small quantities. Every item has a picture (on the left side of the book) and an objective description of the item on the right site, with also the time period for which the item got the jūyō (top) grade. Grades are given in a yearly Shinsa session, with a jury of senior society members.