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Description

This is a wakizashi made by Sakai Ikkan-sai Shigemasa in modern times. It was created to commemorate its dedication to Fudō Myōō at Kōbaisan Unshō-ji Temple. It is a powerful piece distinguished by the abundant kinsuji running through the hamon and has NBTHK Tokubetsu Hozon certification.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Shigemasa›Wakizashi: Sakai Ikkan-sai Shigemasa - NBTHK Tokubetsu Hozon Token
wakizashiTokubetsu Hozon
Kasama Ikkansai Shigemasa

Wakizashi: Sakai Ikkan-sai Shigemasa - NBTHK Tokubetsu Hozon Token

mei · Showa · nagasa 54.7cm · sori 1.2cm

SOLD
Kasama Ikkansai Shigemasa — 1 of 4
Kasama Ikkansai Shigemasa — 2 of 4
Kasama Ikkansai Shigemasa — 3 of 4
Kasama Ikkansai Shigemasa — 4 of 4
1 / 4
1 / 4
Kasama Ikkansai Shigemasa — 1 of 4Kasama Ikkansai Shigemasa — 2 of 4Kasama Ikkansai Shigemasa — 3 of 4Kasama Ikkansai Shigemasa — 4 of 4
Measurements & details
Smith
Kasama Ikkansai Shigemasa
Type
Wakizashi
Period
Around 1926–1989(Showa)
Province
Hitachi
Signature
Signed
Measurements
Nagasa 54.7cmSori 1.2cmMotohaba 3.11cmSakihaba 2.03cmKasane 0.64cmWeight 620g
Description

This is a wakizashi made by Sakai Ikkan-sai Shigemasa in modern times. It was created to commemorate its dedication to Fudō Myōō at Kōbaisan Unshō-ji Temple. It is a powerful piece distinguished by the abundant kinsuji running through the hamon and has NBTHK Tokubetsu Hozon certification.

About the maker

Shigemasa

繁政

around 1926-1989

4 pieces on the market now

›
4 works by Shigemasa on the market→
Shigemasa — full profile

Historical context

The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.

Shōwa to the present: destruction and revival →

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
A
Aoi Art
🇯🇵Ships from Japan
›
✓Verified dealeraoijapan.com
✓Ships worldwide✓English supportWire transferPayPalCredit card
Return policy

If you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.

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

More works by Kasama Ikkansai Shigemasa

View all →
Katanahanbai
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaTanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Tantō

ByKasama Ikkansai Shigemasa
¥660,000
Ayakashi
Gendaitō
Daisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai ShigemasaDaisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai Shigemasa

Daishō

ByKasama Ikkansai Shigemasa
¥150,000
Aoi Art
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaKatana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Katana

ByKasama Ikkansai Shigemasa
¥950,000

Previously sold by Kasama Ikkansai Shigemasa

Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon TokenKatana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Giheiya
Gendaitō
Wakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with ShirasayaWakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with Shirasaya
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Tokuho
Katana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon TokenKatana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa - MukansaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa - Mukansa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Kusanagi
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Samurai Museum
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon CertificateTanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon Certificate
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD

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
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Description

This is a wakizashi made by Sakai Ikkan-sai Shigemasa in modern times. It was created to commemorate its dedication to Fudō Myōō at Kōbaisan Unshō-ji Temple. It is a powerful piece distinguished by the abundant kinsuji running through the hamon and has NBTHK Tokubetsu Hozon certification.

NihontoWatch MonNihontoWatch
MarketEncyclopediaKantei
Swords›Shigemasa›Wakizashi: Sakai Ikkan-sai Shigemasa - NBTHK Tokubetsu Hozon Token
wakizashiTokubetsu Hozon
Kasama Ikkansai Shigemasa

Wakizashi: Sakai Ikkan-sai Shigemasa - NBTHK Tokubetsu Hozon Token

mei · Showa · nagasa 54.7cm · sori 1.2cm

SOLD
Kasama Ikkansai Shigemasa — 1 of 4
Kasama Ikkansai Shigemasa — 2 of 4
Kasama Ikkansai Shigemasa — 3 of 4
Kasama Ikkansai Shigemasa — 4 of 4
1 / 4
1 / 4
Kasama Ikkansai Shigemasa — 1 of 4Kasama Ikkansai Shigemasa — 2 of 4Kasama Ikkansai Shigemasa — 3 of 4Kasama Ikkansai Shigemasa — 4 of 4
Measurements & details
Smith
Kasama Ikkansai Shigemasa
Type
Wakizashi
Period
Around 1926–1989(Showa)
Province
Hitachi
Signature
Signed
Measurements
Nagasa 54.7cmSori 1.2cmMotohaba 3.11cmSakihaba 2.03cmKasane 0.64cmWeight 620g
Description

This is a wakizashi made by Sakai Ikkan-sai Shigemasa in modern times. It was created to commemorate its dedication to Fudō Myōō at Kōbaisan Unshō-ji Temple. It is a powerful piece distinguished by the abundant kinsuji running through the hamon and has NBTHK Tokubetsu Hozon certification.

About the maker

Shigemasa

繁政

around 1926-1989

4 pieces on the market now

›
4 works by Shigemasa on the market→
Shigemasa — full profile

Historical context

The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.

Shōwa to the present: destruction and revival →

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
A
Aoi Art
🇯🇵Ships from Japan
›
✓Verified dealeraoijapan.com
✓Ships worldwide✓English supportWire transferPayPalCredit card
Return policy

If you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.

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

More works by Kasama Ikkansai Shigemasa

View all →
Katanahanbai
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaTanto - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Tantō

ByKasama Ikkansai Shigemasa
¥660,000
Ayakashi
Gendaitō
Daisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai ShigemasaDaisho - by Kasama Ikkansai Shigemasa - Daisho: Sakai Ikkanzai Shigemasa

Daishō

ByKasama Ikkansai Shigemasa
¥150,000
Aoi Art
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai ShigemasaKatana - Hozon - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa

Katana

ByKasama Ikkansai Shigemasa
¥950,000

Previously sold by Kasama Ikkansai Shigemasa

Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984Tanto - by Kasama Ikkansai Shigemasa - Japanese Sword for Sale | Ginza Choshuya | Signed Sakai Ikkan-sai Shigemasa with carving (kaō) - Auspicious day in midsummer, 1984
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon TokenKatana - Hozon - by Kasama Ikkansai Shigemasa - Ikkansai Sigemasa - Mukansa, NBTHK Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Choshuya
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai ShigemasaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkan-Sai Shigemasa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Giheiya
Gendaitō
Wakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with ShirasayaWakizashi - by Kasama Ikkansai Shigemasa - Mukansa Swordsmith Sakai Ikkansai Shigemasa - 45.14cm, with Shirasaya
Sold

Wakizashi

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Tokuho
Katana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon TokenKatana - Tokuho - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Sigemasa - Tokubetsu Hozon Token
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
World Seiyudo
Gendaitō
Tanto - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa - MukansaTanto - by Kasama Ikkansai Shigemasa - Sakai Ikkansai Shigemasa - Mukansa
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD
Kusanagi
Hozon
Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣Katana - Hozon - by Kasama Ikkansai Shigemasa - 無鑑査注文打ち一文字写し『尽忠報国一貫斎繁正』『昭和十八年六月日』保存刀剣
Sold

Katana

ByKasama Ikkansai Shigemasa
SOLD
Samurai Museum
Hozon
Tanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon CertificateTanto - Hozon - by Kasama Ikkansai Shigemasa - Modern Japanese Sword Gendaito Tanto Signed by Shigemasa NBTHK Hozon Certificate
Sold

Tantō

ByKasama Ikkansai Shigemasa
SOLD

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