Sekishu Sadatsuna Naginatanaoshi Wakizashi
S0132
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An osuriage mumei Nambokucho naginatanaoshi attributed to Sekishu Sadatsuna. Hawatare 1 shaku 1 sun 7 bu (35.454 cm or 13.958"). Shallow sori, wide mihaba, narrow kasane. Bo hi. The hamon is gunome midare in nie deki there is sunagashi and kinsuji. The jigane is a o-mokume nagare mixed with itame. There is jinie and chikei. NBTHK Tokubetsu Hozon and sayagaki by Tanobe Michihiro.
There were three generations of Iwami Sadatsuna, two in Muromachi and one in Nambokucho. This is clearly a production of the Nambokucho jidai, and so is the work of the shodai Sadatsuna who was the son of Iwami Naotsuna of the Masamune Jutetsu. He was active around Shohei (1346-1370). His work is widely illustrated in works like Nihonto Zenshu, Kokon Kaji Meishu Roku, and Kokon Meisatsu Miida. He is rated in Toko Taikan at 5,000,000 yen.
