Tsuba, late 16th–17th century (CH 18104493).jpg
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Tsuba, late 16th–17th century (CH 18104493), The iron tsuba is an irregular oval in shape and has a raised, rim-chased mimi (edge). 
At bottom, a high relief decoration of rabbits and plants with brass details. At top,a low relief of clouds and a mountaintop, with textured tsushime hammer work.

At the center is the nakago-ana, an opening through which the sword passes. At the bottom of the opening has sekigane (plugs added to fit the tsuba to a sword) made of shakudo (a soft copper and gold alloy). On either side are ryo-hitsu, openings for the kozuka (utility knife) and the kogai (skewer tool). At left is sashi ura, the side which faces the blade, whose opening takes the hangetsu-kei (half moon) shape. Opposite is the more elaborately decorated sashi omote side, which would face the sword hilt. Its tri-lobed opening is of the suhama type, symbolically representing the coastline of Horai, the holy island of the Immortals.
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Tsuba, late 16th–17th century (CH 18104493), Product Design and Decorative Arts in the Cooper–Hewitt, Smithsonian Design Museum, iron, shakudo (copper and gold alloy), Artist, Unknown, Tsuba, late 16th–17th century
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、16世紀末～17世紀)。鉄製のは楕円形が不規則で、盛り上がったリムチェイス耳()を持つ。下面には、ウサギと真の細部を彫った植物の高貴な装飾が施されている。頂上は雲と山頂の低い浮き彫りで、金細工が施されている。中央には刀が通る中子穴がある。開口部下部には尺銅製の石がある。両筆、小柄の開口部、左に差し裏、刃に面した面に開口部が半月形になる。柄に面する刺面面は、より精巧に装飾されている。三段の開口部は須浜型で、聖なる不滅の島であるの海岸線を象徴する。
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fish knife utility knife low brass gold rim moon-faced high brass fish face