Tokubetsu Hozon Ko-Uda School for Sale

The Ko-Uda school is one of the recognized traditions of Japanese sword, active in the Late Kamakura (c. 1290) era. This page collects Tokubetsu Hozon certified works from across the entire Ko-Uda lineage — every member smith and sub-school — at the Tokubetsu Hozon designation level. 4 Tokubetsu Hozon-certified pieces from the school are currently available.

4 items currently available from trusted dealers worldwide.

Learn about the Ko-Uda school

Recently Listed

無銘(古宇多)特別保存刀剣鑑定書 大前田家伝来 Katana(No signature)(Kouta) 品番:KA022

無銘(古宇多)特別保存刀剣鑑定書 大前田家伝来 Katana(No signature)(Kouta) 品番:KA022

¥1,300,000

Antique Japanese Sword Katana Attributed to Ko-Uda NBTHK Tokubetsu Hozon Certificate

Antique Japanese Sword Katana Attributed to Ko-Uda NBTHK Tokubetsu Hozon Certificate

$7,179

無銘(宇多國房) - Mumei(Uda Kunifusa) - 2-1794

無銘(宇多國房) - Mumei(Uda Kunifusa) - 2-1794

¥770,000

無銘(古宇多)- Mumei(Kouda) - 2-1482

無銘(古宇多)- Mumei(Kouda) - 2-1482

¥770,000

Recently Sold

TS010 Antique Katana sword in Ornate Mounting Kamakura Period (1300–1330s) NBTHK Tokubetsu Hozon certificated
SoldJun 2, 2026

TS010 Antique Katana sword in Ornate Mounting Kamakura Period (1300–1330s) NBTHK Tokubetsu Hozon certificated

Etchu Ko-Uda katana in koshirae
SoldApr 24, 2026

Etchu Ko-Uda katana in koshirae

A KO UDA TAMETSUGU KATANA (古宇多)
Sold

A KO UDA TAMETSUGU KATANA (古宇多)

刀 無銘(古宇多)
Sold

刀 無銘(古宇多)

Tanto [Mumei(Ko-nyudo Kunimitsu)][N.B.T.H.K] Tokubetsu Hozon Token
Sold

Tanto [Mumei(Ko-nyudo Kunimitsu)][N.B.T.H.K] Tokubetsu Hozon Token

鎌倉末期古宇多の始祖『古入道国光』田野辺氏鞘書時代の龍図打刀拵え付特別保存刀剣
Sold

鎌倉末期古宇多の始祖『古入道国光』田野辺氏鞘書時代の龍図打刀拵え付特別保存刀剣

無銘 古宇多
Sold

無銘 古宇多

刀 無銘 (古宇多) / Katana Mumei (Ko Uda)
Sold

刀 無銘 (古宇多) / Katana Mumei (Ko Uda)

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Related Categories

Ko-Uda School — Full ProfileAll Tokubetsu Hozon