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Description

This is a tachi with no signature, accompanied by a red-brown lacquered uchigatana koshirae. The blade measures 73.0 cm in length with a curvature of 2.6 cm. It is attributed to the Kamakura period and originates from Yamashiro province.

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Swords›Yamashiro›Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate)
tachiNTHK

Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate)

mumei · Kamakura · nagasa 73cm · sori 2.6cm

¥800,000
Visit seller website →
Tachi
Could you name the smith from the blade alone? Today’s kantei →
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 1 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 2 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 3 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 4 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 5 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 6 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 7 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 8 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 9 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 10 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 11 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 12 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 13 of 13
1 / 13
1 / 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 1 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 2 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 3 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 4 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 5 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 6 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 7 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 8 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 9 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 10 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 11 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 12 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 13 of 13
Tachi
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Type
Tachi
Period
Kamakura
Province
Yamashiro
Signature
Unsigned
Measurements
Nagasa 73cmSori 2.6cmMotohaba 2.58cmSakihaba 1.86cmKasane 0.61cm
Description

This is a tachi with no signature, accompanied by a red-brown lacquered uchigatana koshirae. The blade measures 73.0 cm in length with a curvature of 2.6 cm. It is attributed to the Kamakura period and originates from Yamashiro province.

Historical context

The Kamakura period (1185 to 1333)

›

Nearly every later authority calls Kamakura the golden age of the sword: the first warrior government as patron, the great traditions at full strength simultaneously, and, tradition holds, the finest smiths of the realm rotating through Go-Toba’s court.

The Kamakura period (1185 to 1333) →

NTHK Appraisal
Kanteishō鑑定書
NTHK Appraisal Certificate
›

The NTHK’s principal certificate, issued for a blade of considerable quality. It confirms a genuine signature, or, for an unsigned (mumei) work, records the judges’ attribution to a smith or school. The paper carries a detailed worksheet with a numerical point score.

About the NTHK›

The NTHK (Nihon Tōken Hozon Kai, the Society for the Preservation of the Japanese Sword) is the oldest of Japan’s sword-appraisal bodies, founded in 1910, decades before the NBTHK. After the death of its long-serving head it divided into two successor societies, the NTHK and the NTHK-NPO, both of which continue to hold shinsa. NTHK certificates are known for a detailed worksheet that records a numerical point score alongside the judges’ written opinion, and the society is especially respected for its attribution of unsigned (mumei) work.

Seller
T
Toyuukai
🇯🇵Ships from Japan
›
✓Verified dealertoyuukai.jp
Settles in JPY
✓Ships worldwide✓English supportWire transfer
Return policy

Contact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.

View all of Toyuukai’s listings→View this item on the dealer’s site→

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Nihontowatch© 2026
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¥800,000

View on Toyuukai

Description

This is a tachi with no signature, accompanied by a red-brown lacquered uchigatana koshirae. The blade measures 73.0 cm in length with a curvature of 2.6 cm. It is attributed to the Kamakura period and originates from Yamashiro province.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Yamashiro›Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate)
tachiNTHK

Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate)

mumei · Kamakura · nagasa 73cm · sori 2.6cm

¥800,000
Visit seller website →
Tachi
Could you name the smith from the blade alone? Today’s kantei →
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 1 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 2 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 3 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 4 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 5 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 6 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 7 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 8 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 9 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 10 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 11 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 12 of 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 13 of 13
1 / 13
1 / 13
Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 1 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 2 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 3 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 4 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 5 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 6 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 7 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 8 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 9 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 10 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 11 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 12 of 13Tachi: Mumei with Red-Brown Lacquered Uchigatana Koshirae (with Preservation Society Certificate) — 13 of 13
Tachi
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Type
Tachi
Period
Kamakura
Province
Yamashiro
Signature
Unsigned
Measurements
Nagasa 73cmSori 2.6cmMotohaba 2.58cmSakihaba 1.86cmKasane 0.61cm
Description

This is a tachi with no signature, accompanied by a red-brown lacquered uchigatana koshirae. The blade measures 73.0 cm in length with a curvature of 2.6 cm. It is attributed to the Kamakura period and originates from Yamashiro province.

Historical context

The Kamakura period (1185 to 1333)

›

Nearly every later authority calls Kamakura the golden age of the sword: the first warrior government as patron, the great traditions at full strength simultaneously, and, tradition holds, the finest smiths of the realm rotating through Go-Toba’s court.

The Kamakura period (1185 to 1333) →

NTHK Appraisal
Kanteishō鑑定書
NTHK Appraisal Certificate
›

The NTHK’s principal certificate, issued for a blade of considerable quality. It confirms a genuine signature, or, for an unsigned (mumei) work, records the judges’ attribution to a smith or school. The paper carries a detailed worksheet with a numerical point score.

About the NTHK›

The NTHK (Nihon Tōken Hozon Kai, the Society for the Preservation of the Japanese Sword) is the oldest of Japan’s sword-appraisal bodies, founded in 1910, decades before the NBTHK. After the death of its long-serving head it divided into two successor societies, the NTHK and the NTHK-NPO, both of which continue to hold shinsa. NTHK certificates are known for a detailed worksheet that records a numerical point score alongside the judges’ written opinion, and the society is especially respected for its attribution of unsigned (mumei) work.

Seller
T
Toyuukai
🇯🇵Ships from Japan
›
✓Verified dealertoyuukai.jp
Settles in JPY
✓Ships worldwide✓English supportWire transfer
Return policy

Contact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.

View all of Toyuukai’s listings→View this item on the dealer’s site→

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¥500,000

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari
  • Japanese Swords
  • Samurai Swords

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki
  • Sword Guards (Tsuba)

Armor

  • Kabuto
  • Samurai Armor
  • All Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

  • Dealer Directory
  • Artist Directory
  • The Daily Kantei
  • Glossary
  • Browse All
Nihontowatch© 2026
TermsPrivacyCookiesAbout

¥800,000

View on Toyuukai
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei
NihontoWatch MonNihontoWatch
Market
Encyclopedia
Kantei