An example of description of Japanese swords: 'The Japanese Sword Masterpiece' by Kanzan SATO (Shin-Jinbutsuoraisha Co., Ltd.) P.130 (referred with some expressions changed)
日本刀表記の例「日本名刀大図鑑」新人物往来社佐藤寒山P.130（表現を一部改めて引用）