Glossary of kabuto. Downloadable pdf samurai armor glossary. "The Samurai Armour Glossary", Nihon-No-Katchu.com Open Libary Contributers:Ian Bottomley & Dave Thatcher, Editor:Tracy Harvey. http://nihonto.org.pl/wp-content/uploads/2013/01/The_Samurai_Armour_Glossary_2013.pdf
1500s-1800s Samurai Armour at the British Museum, London - From the curators' comments: "The armour is a collection of different pieces made between 1500 and 1800. The small metal plates are tied with silk, and protect against arrows. In the 1500s the Portuguese brought guns to Japan and a thick bullet-proof metal breastplate has been added. A grimacing metal mask and 'horns' on the helmet instill fear."