Mumei Uda Kunimune Katana with Koshirae and Shirasaya with Hon'ami origami and NBTHK Tokubetsu Hozon Early Muromachi period (1394–1428AD)
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Mumei Uda Kunimune Katana with Koshirae and Shirasaya with Hon'ami origami and NBTHK Tokubetsu Hozon
Specifications
Type: Katana
Nakago: O-suriage Mumei
Period: NBTHK attributed to Ōei period (1394–1428AD)
Papers: NBTHK Tokubetsu Hozon & Honami Kisanji? documents attributing the sword to Naminohara Yasuyuki
Horimono: Bohi
Habaki: Copper
Koshirae: Uchigatana-koshirae, with an overall blue and Buddhist theme, fuchi-kashira with a swastika theme, and a very nicely made tsuba. Overall, koshirae dates from the Bakumatsu period. Blue tsuka-ito.
Nagasa (Cutting-edge length): Approx 60.6CM (a little over 2 shaku)
Sori (Curvature): approx 2.1cm
Motohaba: 30mm
Sakihaba: 20mm
Kasane: 0.8 mm (Motokasane), 5 mm (Sakikasane)
Weight (bare): 630g
Shinogi-zukuri
Description:
Attributed to Uda Kunimune by NBTHK Tokubetsu Hozon papers in 2025. Uda Kunimune is a descendant of the Uda school, from Etchu, starting in the late Kamakura period. This Katana has a slight notare-hamon with stunning nie activity with stunning crystallized structures. The Jihada consists mostly of Mokume and Masame patterns, which are nicely visible and very enjoyable. This katana has the overall typical early Muromachi sugata, clearly taking inspiration from earlier Nanbokucho work, with an overall wide mihaba. The NBTHK Kanteisho specifically attributes this work to the Ōei period (1394–1428AD). The sword has some light scratches, which are negligible. The sword includes an old wooden box with documents. I have not translated all of the documents, but there is one large examination paper, made by I believe Honami Kisanji, attributing the sword to a specific Naminohara smith. These may not be entirely accurate, but they are still a wonderful addition to the provenance of this sword. The registration number of the torokusho is also a 4-digit number, indicating so-called "Daimyo" registration. These documents may contain some extra provenance or information about this sword, but I cannot easily translate them myself. If anyone is able to translate certain parts that might be interesting from a historical point of view, then please message me.
(Disclaimer: The overview image has its background removed, which can create some slight artefacting around the cutting edge. There is no damage to the cutting edge or kissaki. All images are taken by me personally. The overview image also has the reflection of my camera on the ura side)