Tsuba, 1596–1615 (CH 18341967).jpg
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Tsuba, 1596–1615 (CH 18341967), Product Design and Decorative Arts in the Cooper–Hewitt, Smithsonian Design Museum, pierced iron, engraved brass inlay, Artist, Unknown, Tsuba, 1596–1615
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en
Tsuba, 1596–1615 (CH 18341967), The iron tsuba is round in shape, with sukashi (openwork), and has hon zogan (true inlay) decoration of shinchu hira (flat brass) showing mon-jirushi ni mogosa (various crests with waterweed). This Bizen Yoshiro style of inlay does not stand above the surface of the iron, and was a specialty of the Fushimi Yoshiro, Takahashi school. 

At the center is the nakago-ana, an opening through which the sword passes. At left is sashi ura, the side which faces the blade. Its opening takes the hangetsu-kei (half moon) shape  and has shinchu fukurin (brass rim) covers. Surrounding these openings, is the seppadai, a flat oval area that is migaki (burnished). The rim of the tsuba is round, or maru-mimi.
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, 1596–1615, クーパー・ヒューイット社製品デザイン・装飾美術, スミソニアンデザインミュージアム, ピアスアイロン, 刻印金管インレイ, 画家, 不明, , 1596–1615
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この備前吉郎のは鉄の表面の上には立たず、高橋流伏見吉郎の名物であった。中央には刀が通る中子穴がある。左は、刀身に面した側が指裏である。開口部は半月形を採り、真中覆輪を被っている。開口部を囲むように、平面楕円形のミガキの空間である雪破台がある。の縁は丸く、丸耳。
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moon-faced waterweed