The knife that archaic Japan cavalier uses is called " too knife " , because these cavalier knives are made excellent, fastidious of charge for the making of sth. , not be a weapon only any more, still become a substantial of Japanese culture. Japanese takes cavalier knife very seriously, think its are husk, prohibit precious cavalier knife sells from Japan or be being exported. Accordingly, very long since, "National treasure class " cavalier knife appears in Japanese mainland rarely besides. At present museum of Beijing the Imperial Palace with respect to collect carefully knife of Japan of eye of a few cold brilliance, delicate exquisite. These Japanese knives are the articles of tribute that pay intribute of Liu ball kingdom gives Qing Chaohuang the Supreme Being. Liu ball, namely today Japanese Okinawa county, be located in Chinese the eastpart part, medicinal powder be in on the west over Pacific Ocean, by 36 islands composition, friend says again " Liu ball 36 islands " . Liu ball does not manufacture cutting tool, the Japan that controls cutting tool export drives one side to Liu net, allow Liu ball to buy Japanese sword, enter as articles of tribute give quiet day emperor. Act the role of round figure of tung of chrysanthemum of lacquer of trace a design in gold. Scabbard head end is acted the role of reach band to be copper aureate qualitative, scabbard is mid pester color admire of lacy in order to is hanged. This kind of knife is called in Japan " department of draw of transplant of grain of tung of pear beautiful chrysanthemum coils too knife " , it is the top grade in Japanese knife. (set copper lacquer scabbard broadsword, clear, grow 101cm, museum of the Imperial Palace hides)Too knife edge small turn (see a picture) , knife face cold light is brisk. The edge hardness tall tenacity that makes for material with high-carbon steel is small. Refine of temper by dipping in water wants 30 times when smelt above, refine of the last temper by dipping in water wants fire of the classics after lapping with clay, the purpose is the cooling rate of slow down knife, make edge more hard, the back of a knife blade provides flexibility and tenacity more. (set copper lacquer scabbard broadsword, clear, grow 101cm, museum of the Imperial Palace hides) have distinguishing feature extremely as a result of the making technology of Japanese knife, be in early Ming Dynasty period, the imperial court goes to Japan with respect to group person " study abroad " study too the making method of the knife. Arrived quiet day, this knife also gets large quantities of broadsword this day of pay intribute of Liu ball kingdom quite favor of quiet day emperor. Yong Zheng emperorCeng Xiayu clear palace is built do place, make knife head " can do according to Japanese knife appearance " , the influence that broadsword of visible Liu ball has to Qing Gongwu. Japanese broadsword lets Yong Zheng emperor look at with new eyes not only, qianlong also favors very to Japanese knife. For example this handle Qianlong country of ball of 22 years of Liu the broadsword of scabbard of shark skin black lacquer of pay intribute. This grows broadsword about 99 centimeters, scabbard iron is qualitative, tangle have yellow area. Knife handle Yi Tie is qualitative, apply shark skin, reoccupy yellow belt twines appearance of successive lozenge grain, annular protect a hand, set follow in a continuous line having eye. (Liu ball broadsword, clear, grow 99.8cm, museum of the Imperial Palace hides)Qianlong period, liu ball country sets another times of pay intribute copper also has lacquer scabbard broadsword very much characteristic, 135 centimeters long, woodiness of knife handle pear, blue damask is wrapped inside, yellow belt tangles outside, pommel and protect a hand to pledge for copper, aureate silver, carve of order follow in a continuous line carves a circle of the royal blood badge is written down. (set copper lacquer scabbard broadsword, clear, grow 135cm, museum of the Imperial Palace hides. ) steel of this knife body is qualitative, scabbard woodiness, the face asperses gold lacquer, band of bullion of 3 copper plating, carve badge is written down on be the same as with the handle, scabbard adds braces. Add one skin lot, man Hanwen of Chinese ink book: "For use of an emperor of Gao Zongchun's emperor asperses yataghan of gold lacquer an old name for Japan a Qianlong 8 years of respectful lay aside " . And from now on the knife acts the role of a Wang Hui sign that attend to look, it is the broadsword of pay intribute of Liu ball kingdom undoubtedly.