NihontoWatch日 以下切(伝 貝三原)/54.8cm 販売価格 (税込) ¥220,000 在庫状態 : 注文可 注文可 数量 長さ 54.8cm(1尺8寸1分) 反り 1.6cm(5分) 目釘穴 3個 元幅 27.0mm 元重 4.2mm 先幅 18.4mm 先重 3.6mm 形態 鎬造 庵棟 地鉄 板目詰む 鎬地柾流れ 刃文 直刃に互の目交じり 鋩子 直ぐ小丸に先掃けて返る 中茎 生ぶ 鑢目切り 彫刻 樋無 時代 天文頃(戦国時代・1545年頃) 国 備後(広島県尾道市) 鑑定書 日本刀剣保存会鑑定書 外装 白鞘 刀身の重さ 435g ハバキ 金鍍金 二重 上記以外の内容をお知りになりたい方はお問合せ番号「A21044764」を添えてお気軽に お問い合わせフォーム よりお問合せください。 掲載商品は店頭にも陳列しています。売り切れの場合は御容赦ください。
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Yamato-den · Bingo
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The Mihara school arose in Bingo Province during the late Kamakura period and maintained continuous production through the end of the Muromachi period. The region's ancient reputation as a center for iron goods—documented as early as Engi 14 (914) in the Seiji Yōryaku—provided the technical foundation for this sustained tradition. Because Bingo contained numerous landed estates (shōen) belonging to major Kinai temples and shrines such as Tōji and Rengeō-in (Sanjūsangendō), the smiths working at Mihara engaged in regular interchange with the central provinces. This geographical and economic relationship accounts for the pronounced Yamato temperament observable throughout the school's output. The term "Ko-Mihara" (Early Mihara) designates works produced from the late Kamakura through the Nanbokuchō period, with Masaie and Masahiro recognized as the lineage's most accomplished masters. Ko-Mihara workmanship reveals a distinctive fusion of Yamato influence and regional character. The forging typically exhibits itame-hada mixed with conspicuous mokume and flowing grain (nagare), often with a tendency for the texture to stand (hada-dachi). Fine ji-nie adheres throughout the steel surface, and a characteristic whitish cast (shirake-utsuri) appears prominently—a feature repeatedly cited in appraisals as diagnostic of the school. The tempering follows Yamato convention in emphasizing suguha, but the nioiguchi tends toward tightness (shimarigokoro) with well-adhering ko-nie rather than the more vigorous nie activity seen in Yamato proper.
Along the hardened edge, smiths frequently introduced hotsure, uchi-noke, and subtle kuichigai-ba effects, while the nioiguchi often exhibits a subdued (shizumi) quality. The bōshi typically runs straight and turns back gently in ko-maru or rounded (maru) form, concluding with fine hakikake at the tip—a restrained finish characteristic of the school. Nanbokuchō-period examples display the era's monumental aesthetic: wide mihaba with minimal taper from base to tip, shallow curvature, high shinogi, and extended chū-kissaki or ō-kissaki, creating a dignified and powerfully robust form. The school's output demonstrates how peripheral traditions absorbed and transformed influences from established centers while maintaining regional identity. Ko-Mihara blades occupy a position intermediate between the vigorous nie-work of Yamato proper and the more subdued aesthetic preferences of western Japan. This balance—robust construction paired with restrained tempering, standing grain texture combined with tight nioiguchi, and Yamato-derived suguha inflected with local characteristics—defines the school's technical achievement. The whitish forging, conspicuous mokume, and gentle bōshi became recognized signatures that distinguished Mihara work from its Yamato models. Through four centuries of continuous production, the smiths of Mihara maintained technical standards sufficient to supply both local demand and broader military markets, their works preserving a coherent school identity across generational transmission. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobumori信守 | 987-1596 | 0 |
| Sadakuni貞國 | 1441-1444 | 0 |
| Nobutsugu信次 | 1444-1449 | 0 |
| Nobuie信家 | 1394-1428 | 0 |
| Tomotsugu朝次 | 1394-1428 | 0 |
Yamato in the Muromachi period
The monasteries that had sustained Yamato lost ground through the Muromachi period, and the schools thinned with them; Sue-Tegai kept the old masame manner alive in quantity. The burning of Tōdaiji’s Great Buddha hall in 1567 closed the temple age.
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.
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.