藝州嚴嶋社寶物鎧之図 - 国立国会図書館デジタルコレクショ
http://dl.ndl.go.jp/info:ndljp/pid/2539259
19th c. Japanese book about construction of suit of Samurai Armor.
A useful reference for scratch builders.
Another book on the same topic
http://dl.ndl.go.jp/info:ndljp/pid/2541012