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Description

This is a koshirae (sword mounting) featuring a hawk and sparrow design fuchi-kashira signed by Ishiguro Masayoshi. The accompanying tanto is signed Bizen Koku Ju Osafune Kiyomitsu and dated to August of the 12th year of Tensho era. The tanto has a Tokubetsu Hozon certificate.

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Swords›Bizen›Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August
tantoTokubetsu Hozon

Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August

mei · Momoyama

SOLD
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 1 of 2
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 2 of 2
1 / 2
1 / 2
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 1 of 2Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 2 of 2
Measurements & details
Type
Tanto
Period
Momoyama
Province
Bizen
Signature
Signed
Description

This is a koshirae (sword mounting) featuring a hawk and sparrow design fuchi-kashira signed by Ishiguro Masayoshi. The accompanying tanto is signed Bizen Koku Ju Osafune Kiyomitsu and dated to August of the 12th year of Tensho era. The tanto has a Tokubetsu Hozon certificate.

Historical context

Three unifiers ended the century of war, and the sword became an instrument of the new order: the 1588 sword hunt made it the warrior’s badge, famous blades passed between houses like treaties, and appraisal ever after divides the craft here, kotō from shintō.

The Momoyama period (1573 to 1615) →

NBTHK Certificate
Tokubetsu Hozon Tōken特別保存刀剣
Sword Especially Worthy of Preservation
›

A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.

About the NBTHK›

The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.

NBTHK official site→
Seller
C
Choshuya
🇯🇵Ships from Japan
›
✓Verified dealerwww.choshuya.co.jp
✓Ships worldwide✓English support
Return policy

If, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.

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

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Armor

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By Certification

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Resources

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Description

This is a koshirae (sword mounting) featuring a hawk and sparrow design fuchi-kashira signed by Ishiguro Masayoshi. The accompanying tanto is signed Bizen Koku Ju Osafune Kiyomitsu and dated to August of the 12th year of Tensho era. The tanto has a Tokubetsu Hozon certificate.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Bizen›Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August
tantoTokubetsu Hozon

Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August

mei · Momoyama

SOLD
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 1 of 2
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 2 of 2
1 / 2
1 / 2
Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 1 of 2Koshirae with black roiro lacquer saya, Hawk and Sparrow design fuchi-kashira, signed Ishiguro Masayoshi (with Kao), Tanto signed Bizen Koku Ju Osafune Kiyomitsu, dated Tensho 12th year, August — 2 of 2
Measurements & details
Type
Tanto
Period
Momoyama
Province
Bizen
Signature
Signed
Description

This is a koshirae (sword mounting) featuring a hawk and sparrow design fuchi-kashira signed by Ishiguro Masayoshi. The accompanying tanto is signed Bizen Koku Ju Osafune Kiyomitsu and dated to August of the 12th year of Tensho era. The tanto has a Tokubetsu Hozon certificate.

Historical context

Three unifiers ended the century of war, and the sword became an instrument of the new order: the 1588 sword hunt made it the warrior’s badge, famous blades passed between houses like treaties, and appraisal ever after divides the craft here, kotō from shintō.

The Momoyama period (1573 to 1615) →

NBTHK Certificate
Tokubetsu Hozon Tōken特別保存刀剣
Sword Especially Worthy of Preservation
›

A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.

About the NBTHK›

The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.

NBTHK official site→
Seller
C
Choshuya
🇯🇵Ships from Japan
›
✓Verified dealerwww.choshuya.co.jp
✓Ships worldwide✓English support
Return policy

If, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.

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

Swords

  • Katana
  • Wakizashi
  • Tantō
  • Tachi
  • Naginata
  • Yari

Fittings

  • Tsuba
  • Fuchi-Kashira
  • Kozuka
  • Menuki

Armor

  • Kabuto
  • Samurai Armor

By Certification

  • Tokujū
  • Jūyō
  • Tokuho
  • Hozon

Resources

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

NihontoWatch

Market
Encyclopedia
Kantei
NihontoWatch Mon

NihontoWatch

Market
Encyclopedia
Kantei