説明

Antique Japanese Sword Wakizashi Attributed to Kaifu with NBTHK Hozon Certificate 【Description】 Summary This blade is attributed to Kaifu (海部) during the late Muromachi period (late 15th-mid 16th century). Kaifu is the name of the clan and school that ruled Awa province (Today’s Tokushima prefecture). From the beginning of the Kamakura period (late 12th century), they started sword-forging by taking advantage of its geographical location where iron sand was abundant near the Kaifu River. Their sword-forging was active and reached its heyday during the Sengoku Jidai (Warring state period in the late 15th-early 16th century). Kaifu clan was destroyed by Chosokabe Motochika in 1575. After the event, the school’s presence was hindered in the region. However, when the Hachisuka clan took control of Awa province, the clan invited the members of the Kaifu school and let them live near the Tokushima castle, forging blades for the clan. The school continued at the end of the Edo period. Historical Background The late Muromachi period overlaps with the Sengoku period (戦国時代, “Warring States Period”), a time marked by ongoing military conflict and political fragmentation across Japan. In this turbulent era, the samurai class played a central role as both warriors and political actors. Swords were vital to the samurai not just as weapons but also as symbols of personal honor and status. A well-forged sword was regarded as an extension of the samurai’s soul, used in both battle and ceremonial practices. As warfare intensified, demand for high-quality blades grew rapidly. Feudal lords (大名, daimyō) sought to equip their armies with superior weapons, turning to renowned swordsmiths like Moritaka for craftsmanship that combined functionality with aesthetic value. It is appraised as a Hozon Token (保存刀剣) issued by NBTHK (Nihon Bijutsu Touken Hozon Kyokai: 日本美術刀剣保存協会). This authentication paper was only given to authentic Japanese swords, well preserved and high quality with artistic value. *Please keep in mind that there are a couple of Kitae Kizu on this blade. If you like to know the detailed condition, please feel free to contact us. 【Blade】 Cutting Edge Length (Nagasa) : 34.5 cm (13.5 inches) Curvature (Sori) : 0.4 cm (0.15 inches) Hamon : The crystalline structure which forms along the cutting edge of a blade as a result of the hardening process. Jimon(Jihada) : visible steel surface pattern created by folding and hammering during forging process Kissaki : Kissaki is the tip of the Japanese sword. Nakago : Nakago is the tang of the Japanese sword. Japanese swordsmiths left the black rust on the tang because it prevents red rust while the tang is in its handle. And the discoloration of the tang was created over time, and it is a great indicator for a Japanese sword specialist to estimate when the sword was forged. Habaki : Habaki is the equipment to make the blade not touch its scabbard inside. It prevents the blade from getting rusty and chipped. Authentication Paper : NBTHK Hozon Certificate for the blade (No. 3037919) NBTHK , also known as Nihon Bijutsu Touken Hozon Kyokai (the Society for the Preservation of the Japan Art Sword), is one of the oldest Japanese sword appraising organizations in modern-day Japan. They authenticated the blade on December 1st in the 7th year of Reiwa (2025). They appraised it as Hozon Touken, the blade especially worth preserving for Japanese society. The purchaser will receive this original certificate as well. We can also translate what is written into English and make a PDF file for your record if you request. Registration Number : Tottori 15904 The Board of Education in Tottori prefecture issued a registration paper for this sword. It is called Jyu Ho Token Rui Torokusho (銃砲刀剣類登録証). Bunkacho (The Agency for Cultural Affairs) acknowledges a Japanese sword with this paper as a work of art. The sword needs to be traditionally hand-forged and made of Tamahagane carbon steel to be registered in the system. With

Antique Japanese Sword Wakizashi Attributed to Kaifu NBTHK Hozon Certificate

Antique Japanese Sword Wakizashi Attributed to Kaifu NBTHK Hozon Certificate

脇差

$1,860

世界81社の刀剣商を横断追跡 · 価格履歴 · 売却アーカイブ

仕様

長さ

34.5 cm

反り

0.4 cm

流派について

Kaifu School海部派

海部派は阿波国、すなわち現在の徳島を中心とする四国の地に興った刀工の一群である。説示は『古今銘尽』『古刀銘尽』を引いて、この派に二つの系統があったことを伝える。その一は康暦頃の海部太郎氏吉を祖とする系であり、いま一つは応安頃の波平の弟子と伝え、「藤」と一字を銘する者を祖とする系である。もっとも祖と仰がれる氏吉の作は現存せず、現存する作品にも南北朝時代まで時代の遡るものはなく、世に海部物と呼ばれる作の多くは室町時代のものとされる。活躍が目立つのは室町時代の後半からであり、説示に名を挙げる工としては、氏吉、藤原氏吉、阿州開府氏吉と銘する一群のほか、明応頃と天文頃の二工が知られる氏重、大永年紀を残す泰吉、同じく大永頃の海部鍛冶である泰長がある。氏重については、後に播州姫路に移り大和大掾を受領した初代、通称三木新五郎の名が伝えられ、その末裔に手柄山正繁が出たことも記される。 作風について説示はおおむね二様を記す。一つは、光の弱い地景が目立ち、大のたれ・小のたれを焼いて、匂口が望洋としてしまらず、地景と同調する金筋がかかるものである。いま一つは、板目に柾気が交じって鍛えがやや軟らかく、少しく白け、働きのあまり見られない直刃を焼く、波平風と評されるものである。短刀には、平造、三ッ棟で身幅広く寸延び、重ね薄めに僅かに内反りのついた大柄な姿が見られ、板目に杢を交え、刃寄りが流れて柾がかり、地沸が微塵につき、白け映りが立つなかに細直刃を焼いて枯淡の趣を醸す作がある。彫物には棟寄りの梵字に素剣・護摩箸を掻き流したものや棒樋があり、刀身によく調和する。脇指には海部の山刀と呼ばれる切刃造のものが知られ、地刃の出来に見劣りするものが多いと説示は述べる。海部を見分ける手がかりは、光の弱い地景、白け映りと柾がかった鍛え、しまりに乏しい匂口、そして直刃に波平風の趣を帯びる点にある。 鑑定にあたっては、これら地景・白け・匂口の性格に加え、銘字を太鏨で大振りに刻む茎の様子が拠りどころとなる。海部物は実用に即した性格が強く、その切れ味の鋭さを語る作が伝わる。氏吉作の名物岩切海部は享保名物帳に所載され、名はその切れ味の鋭利さに由来すると伝え、もとは阿波の豪族三好家にあって長慶がこの刀で武功をたて、後に福岡の黒田家に伝わったという。また泰吉や泰長の作には、海部の作が江に化したと語られるごとく、地刃や帽子に物語を生む要素を含むものがある。氏吉作の短刀には『光山押形』に所載され伊東巳代治の旧蔵にかかる一口もある。有銘の作は総じて少なく、それゆえ氏重・氏吉・泰吉・泰長らの遺例は、各工のみならず海部派全般を研究するうえで貴重な資料であり、阿波の地に根ざした実用刀の一系として位置づけられる。

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