Excellent flawless Koto Dotanuki Naginata made by Kiyokuni with Nbthk Hozon Certificate. Kiyokuni was the Personal Swordmaker to Daimyo Kato Kiyomasa. Mounted in Shirasaya.
KIYOKUNI (清国), Bunroku (文禄, 1592-1596), Higo – “Higo no Kuni Dōtanuki Kiyokuni” (肥後国同田貫清国), “Hishū-jū Fujiwara Kiyokuni saku” (肥州住藤原清国作), Dōtanuki school, he worked during the Tenshō era (天正, 1573-1592) for Katō Kiyomasa (加藤清正, 1562-1611) and legend says that he received the character for “Kiyo” from him whereupon he took the smith name Kiyokuni, he lived first in Kikuchi (菊池) but moved later to Kumamoto (熊本), it is said that he was the same Kiyokuni who worked around Keichō (慶長, 1596-1615) in Satsuma and signed with “Sasshū Isa-jū Kiyokuni” (薩州伊佐住清国), he made mostly blades with a stout sugata which renowned for their supreme sharpness, the jigane is an itame-nagare mixed with masame, the hamon is a chū-suguha mixed with notare in ko-nie-deki or also a gunome-midare, along the habuchi often mura-nie and yaki-kuzure are seen, ryō-wazamono
Katō Kiyomasa, (born 1562, Nakamura, Owari province, Japan—died Aug. 2, 1611, Kumamoto ,Higo province), Japanese military leader who helped both Toyotomi Hideyoshi and Tokugawa Ieyasu in their attempts to unify Japan As an ardent Buddhist, he also led the struggle to ban Christianity from Japan.