Ordering number: 20546
Katana in Shirasaya（NBTHK Tokubetsu Hozon Token)(NBTHK Tokubetsu Kicho Token)
Signature : Mumei(attributed as Rai Kuniyasu)
by Tokubetsu Hozon paper
or Mumei(attributed as Sa Yasuyoshi)
by Tokubetu Kicho paper
Sayagaki: Sa Yasuyoshi, O-Suriage Mumei.
Blade length is 2 Shaku 3 Sun 9bu
Written by Dr. Kanzan in Autumn 1965.
(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to the Jyo-jyo saku ranking.
The blade was polished.
Habaki : Solid gold double habaki with Althea engraving. 40g
Blade length :72.12cm or 28.39inches.
Sori :2.27cm or 0.89inches.
Mekugi : 2
Width at the hamachi :3.2cm or 1.25inches.
Width at the Kissaki :2.31cm or 0.90inches.
Kasane :0.55 cm or 0.21inches.
The weight of the sword:580grams.
Era: The Nambokucho period.
Shape: Osuriage-Mumei, the blade is broad and thick,
has adequate Sori and bigger Kissaki.
Jigane: Niedeki Gunomemidare, Utsuri appears and mixed with Koitame.
Hamon: Niedeki, deep Nioikuchi, Suguha with active Ashi,
Boshi turns back round to be end with Yakizume.
Special Feature: Rai Kuniyasu is a pupil of Rai Kunimitsu, made many
swords in the Nambokucho period, his style was quite similar to the
style of Rai school. The strongest characteristic of Rai school which
we can see in his work is in Jihada: Suguha, Notare, Niju-ba, and
Sanju-ba. Sunagashi and Kinsuji work well in Hachu. Shinogiji has
Itamehada mixed with Mokumehada.
From Aoi Art: The license was issued on the 31st of March, Showa
26(1951). The NBTHK Tokubetsu Kicho paper says: “Attributed as
Sa Yasuyoshi, Osuriage-Mumei, Length 72.12cm, on lucky day of
autumn, 1965m, by Dr. Kanzan. Stamp.” Judging Mumei is quite
difficult, so the attributions are different between 2 papers.
Fortunately, in both papers it is judged as made in the Nambokucho
period.
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