East Asia, Japan, Momoyama period, ca. 1590 CE. A Japanese longsword koto katana, attributed to the Dotanuki Hyobu school. The steel blade is in fine polish and displays a beautiful burlwood grain pattern above a wave-like temper line, or nioi/notare hamon. It includes a copper habaki collar and a wooden storage scabbard with an attribution inscription in blank ink by 20th century historian Kanzan Sato. The sword is accompanied by high-quality mounting, featuring a modern lacquered saya scabbard with a painted floral mon crest. The fuchi hilt collar is adorned with rabbits and flowers, and an iron tsuba guard complements the matching butt cap. The ray-skin-covered hilt has a copper menuki tiger ornament and is wrapped in doeskin. The wooden tsunagi blade takes the place of the iron blade in its decorative mountings koshirae to keep the shape of the fittings while the actual blade is stored safely in the plain wooden shirasaya scabbard when not in use or display. Size of steel blade: 26.5" L x 1" W (67.3 cm x 2.5 cm); handle & saya scabbard: 39.5" L (100.3 cm)
This sword was examined by the Society for the Preservation of the Japanese Sword (NBTHK) and includes Tokubetsu Kicho Token papers.
Dotanuki Hyobu refers to a lineage within the Dotanuki school, a well-regarded group of swordsmiths active from the late Muromachi period into the Edo period in Japan. Known for their sturdy and robust blades, Dotanuki swords were favored by samurai for their reliability and cutting power.
Kanzan Sato (1907-1978) was a highly respected Japanese sword expert, historian, and appraiser. Known for his extensive knowledge and dedication to the art of Japanese sword-making, Sato was instrumental in preserving and promoting Japanese swords as cultural treasures. He served as a director of the Society for the Preservation of the Japanese Sword (NBTHK), which is a leading authority on Japanese swords and a certifying body for their authenticity and quality. Sato's contributions include detailed attributions and appraisals, often inscribed on the saya-gaki (scabbard inscriptions)- as seen on this example- of swords in shirasaya (storage scabbards). His inscriptions are considered reliable and valuable endorsements in the sword-collecting community, as they reflect his deep expertise and provide historical and technical insights into each blade.
Provenance: private Kihei, Hawaii, USA collection, purchased from I.M Chait Gallery, Beverly Hills, California, USA, September 23, 2007, part of lot 269
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#189520
Condition
Blade has minor nicks, but otherwise polished and excellent. Wood tsunagi & saya are modern. Abrasions and wear to lacquer but otherwise good condition. Abrasions to wood storage sheath, but otherwise excellent with inscription by Kanzan Sato.