"Buki Nihyaku Zu" is a 170 years old antique Japanese book written in 1848 by Kobayashi Sukemichi. It contains 200 diagrams of 450 military related weapons and equipment. This book serves as an important historical reference for serious learners of Japanese military culture and history. The original antique book contains only the names and diagram of each tool or weapon. In this book, I've not only translated the names, but I've also added more information to further your understanding. If you'd like to own a 1:1 exact replica of this antique manual, please visit: www.Gekiken.org or www.SamuraiBookshop.com. Sincerely, Jack Chen