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Sadatsuna Naginatanaoshi Katana
An impressive later Nambokucho naginatanaoshi katana, attributed to Izufu Sadatsuna. Active around Meitoku (Southern dynasty 1390). O-suriage, shinogizukure, iroi mune, okissaki, bohi and futatsubi. Hawatare: 2. shaku 2 sun 1 bu (63.5 cm /26.36". Motohaba: 3.125 cm. Sakihaba: 3.033 cm, Kasane: 3.3 mm , Florid gunome midare in niedeki, kinsuji, kochoji, hanie, kinsuji, nie hotsure, nado. Moist itame, jinie, chikei, and gifu chikei, nado. Rated at 5,000,000 yen in Toko Taikan by Tokuno. New polish by Mishina, Kenji, shirasaya with Tanobe Michihiro sayagaki, gold foil habaki. NBTHK Tokubetsu Hozon Kanteisho.
The sayagaki states, Naotsuna no Ko to Den Nidai Nambokucho Goki (the son and school of Naotsuna late Nambokucho).
There were three generations of Sadatsuna, the first was the son of Naotsuna, working in Sekishu (Shimane prefecture) which produced very high quality tamahagane. used in swords from ancient times.
Naotsuna is considered one of the Masamune jutetsu, and along with Go Yoshihiro ansd Kaneuji, is argued to be the best student of Masamune. However, Masamune ( 1264 -1343), while Naotsuna was active in the later part of Shohei (1348 - 1370), a signed example dated 1375, precludes the fact that he could have studied under Masamune. Nonetheless, his swords are solidly in the Soshu tradition. $23,000
The two spots, are reflection from my track lighting.
Slight ware in the kissaki
Rolling moist itame hada with jinie and chikei Gifu Chikei
Toko Taikan - Shohei (1346-1370) nidai work
Nihonto Zuikan - Koto Hen. Oei jidai, third generation showing traditional school hamon
Juyo Token Daibun Roku - Koto Bu - No generations indicated in this general list.
Tokubetsu Hozon Kanteisho