Ordering number: 22354
Katana in Shirasaya with Koshirae(NBTHK Tokubetsu Hozon Token)
Signature: Minamoto Ason Muneshige
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo Saku ranking.
habaki: Silver single habaki.
The blade is polished.
Blade length:69.7cm or 27.44inches.
Sori:0.9cm or 0.354inches.
Width at the hamachi:3.09cm or1.217inches.
Width at the Kissaki:2.03cm or 0.8inches.
Kasane:0.72cm or 0.28inches.
The weight of the sword:770grams
Era: The Empo era, the Edo period
Shape: The blade is broad and thick with shallow Sori and middle Kissaki.
Jigane: Koitamehada is grained well with Jinie.
Hamon: Niedeki Gunomemidare is grained well with lots of Ashi. Sunagashi and Kinsuji work well.
Special feature: Minamoto Ason Muneshige is one of rare signatures. We researched some books and found that there was a swordsmith named Bushu Shitahara Ju Muneshige around the Keicho period, also known as Bushu Shitahara Yamamoto Ason Muneshige or Yamamoto Genji. However, this Hamon is quite similar to the ones of Hitachi Daijo Muneshige 1st, though he never used Mei of “Ason”. We can just wait for some further researches and discoveries.
Tsuba: 8-Mokko-shaped Shakudo Tsuba. Patterns are engraved with openwork.
Fuchikashira: On Shakudo plate, pine trees and music instruments are engraved with gold color.
Saya: Aogai Chirashi Saya
Menuki: Patterns are engraved on Shakudo plate.
From Aoi Art: This work passed NBTHK Tokubetsu Hozon Token. At first, we thought it was Hitachi Dijo Muneshige, but this blade has no Kesho Yasuri, so we researched and found that Bushu Shitahara Yamamoto Ason Muneshige must be this swordsmith using the Mei of “Ason”.
NBTHK Tokubetsu Hozon Token paper
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta