Description
Authentic Nihontō Japanese Sword Katana Signed by Chikugo no kami Kunifusa 筑後守國房 NBTHK HOZON TOKEN Certificate
Although the body style suggests it was made by the second-generation 國房 (Kunifusa) active around the Kanbun period, the commentary from the Japanese Sword Preservation Association states it is from the mid-Edo period. Upon inquiry, it was clarified that due to a lack of definitive generational records and the absence of dated works, pieces attributed to Iyo 國房 (Kunifusa) broadly fall under the mid-Edo period. In my view, given the typical Kanbun Shinto style, it is likely from the second generation, or possibly the third if considering a later period.
Regardless, existing works by successive generations of 國房 (Kunifusa) are very rare, making this a valuable cultural artifact from Ehime Prefecture.
This sword has a wide difference in width from base to tip, shallow curvature, and a medium-length tip. The typical Kanbun Shinto style reflects an emphasis on cutting power, maneuverability, and practicality. The steel has a well-forged mix of small itame and mokume grains with a slightly raised texture and chikei. The hamon is a bright and clear suguha with very shallow, small undulations and well-defined peaks. The boshi is straight with a rounded tip, extending to the yokote. It is well-balanced with a center of gravity towards the handle, and in excellent polish. We recommend submitting it for a Tokubetsu Hozon (Special Preservation Sword) certificate.
Bare weight: 651 grams.
Nihontō Information
| Name 名称 | 筑後守國房 Chikugo no kami Kunifusa |
| Blade Length 刀長 | 二尺三寸二分七厘強 / 70.53 cm |
| Sori 反り | 三分零厘強 / 0.93 cm |
| Blade Width 元幅 | 29.7 mm |
| Blade Thickness 元重 | 6.4 mm |
| Tip Width 先幅 | 物打22.2 mm 横手位置18.8 mm |
| Tip Thickness 先重 | 物打5.4 mm 松葉位置4.1 mm |
| Mekugi-ana 目釘穴 | 1個 |
| Age 時代 | 江戸前期～江戸中期The early ～ middle period of Edo era（17th to 18th century） |
| Certificate 鑑定書 | 保存刀剣鑑定書（NBTHK HOZON TŌKEN Certificate） |
| Registration 登録 | 平成22年11月9日 東京都登録 Registered on November 9, 2010, in Tokyo Prefecture |
| Included 附属 | 素銅地銀着はばき Copper and silver-plated habaki |
| 白鞘 Shirasaya Case | |
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