| Product No. KA-0808 無銘（宇多国久） | |
|---|---|
| Mei |
Mumei, but attributed to Uda Kunihisa Back: -- |
| Shape | Shinogi-zukuri, iori-mune, with a small chu-kissaki; relatively slender with a slight koshi-zori, giving a graceful appearance |
| Region | Etchu Province |
| Era | Early Muromachi Period（around Bunan Era 1444-1449） |
| Length |
65.8 cm 25.9 in |
| Sori (curvature) |
1.6 cm 0.6 in |
| Motohaba |
2.6 cm 1.0 in |
| Sakihaba |
1.7 cm 0.7 in |
| Munekasane |
0.6 cm 0.2 in |
| Status | Tokubetsu Hozon Token |
| Certification Date | August 01, 2025 |
| Registration Authority | Tokyo |
| Registration Date | August 16, 2025 |
| Jihada (Metal pattern) | Tightly forged itame-hada with a slight flowing tendency, with ji-nie |
| Hamon (Temper line) | Suguha-based hamon with small gunome, with ko-nie, sunagashi, and kinsuji |
| Bōshi (Point / Tip) | Straight boshi with a small ko-maru turn-back |
| Nakago (Tang) | Ubu, mumei nakago with sujikai file marks and a ha-agari iriyamagata end |
| Mekugiana (Rivet holes) | 1 |
| Habaki | Suaka-based habaki with shakudo covering |
| Mountings | Koshirae-tsuki |
| Koshirae | Uchigatana koshirae with an aogai mijin-nuri saya |
| Koshirae Length |
97.0 cm 38.2 in |
| Tsuka Length |
24.2 cm 9.5 in |
| Tsuba | An iron tsuba of tate-maru-gata, with sukibori and ji-sukashi, and iro-e inlay, depicting Chinese figures |
| Menuki | A pair of menuki in suaka, depicting kirin, carved in katachi-bori and finished with gold iro-e |
| Fuchigashira | Shakudo nanako ground with iro-e inlay, depicting figures |
| Other details | Tsuka with white samegawa, wrapped in gold-brown tsumi-maki |
Price |
700,000 JPY |
| This is an ubu, unsigned blade attributed to Uda Kunihisa. Kunihisa is recorded as a son of Uda Kunimune, and several generations used this name from the Ōei era through the late Muromachi period. His hamon is typically a narrow suguha or a small midare.The Uda school traces its origins to Ko-nyūdō Kunimitsu in the late Kamakura period. During the Nanbokuchō period, smiths such as Kunifusa, Kunimune, and Kunitsugu were active, and the tradition continued to flourish under the same names into the late Muromachi period. The school’s style reflects a combination of Yamato and Sōshū traditions. The jigane is itame mixed with mokume, often showing a somewhat large and visible grain, while the hamon is a ko-nie-based chū-suguha with kinsuji and sunagashi.In attributions of unsigned works, Uda Kunihisa is regarded as a representative Muromachi-period Uda smith, ranking just below Kunifusa, who is considered the finest in the school for the beauty of his jigane.This blade is ubu and mumei, attributed specifically to the higher-ranked Uda Kunihisa within the school. It passed the Tokubetsu Hozon Token shinsa in 2025. It is accompanied by a high-quality aogai mijin-nuri saya. |
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