AS21676 Wakizashi:Mumei attributed as Gassan Sadayoshi

Ordering number: AS21676
Wakizashi in Shirasaya(NBTHK Hozon Token)

Signature:　Mumei attributed as Gassan Sadayoshi
無銘（月山貞吉）

(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku, Jyo saku, and regular saku)
This sword belongs to Jyo Jyo Saku ranking.
The blade was polished.
Habaki:　copper single habaki.
Blade length: 35.3 cm or 13.89inches.
Sori:0.5 cm or 0.19inches.
Mekugi: 1
Width at the hamachi: 2.86 cm or 1.12inches.
Kasane:0.63cm or 0.24inches.
The weight of the sword:295grams.
Era: Bakumatsu, the late Edo period.
Shape: Hirauchi Wakizashi, 2 lined Hi and Sanskrit on the front side, Bohi on the back side.
Jigane: Koitamehada is grained well: Hadame is visible.
Hamon: Niedeki Gunomemidare, Boshi is Midare and turns back round.

Special Feature: It is Mumei, but attributed as Gassan Sadayoshi. Gassan Sadayoshi was a pupil of Suishinshi Masahide, lived in Osaka, and his works had strong Konie and Gunomemidare like Suebizen. He was really good, so it is sometimes really difficult to distinguish his works from Katayama Munetsugu or Ouei Bizen works. It was ranked as a Shinshinto Jyo saku, which has lots of Ashi and is a really well-made work.

From Aoi Art: Apparently it looks like a work of Katayama Munetsugu, really well-made. Perhaps after the Haito Edict, he had no choice, and studied Ouei Bizen works and produced similar works. Sometimes Jigane is as good as the old ones, and this is the one. Sometimes we mistake the judgement, but this Wakizashi has to be Gassan Sadayoshi, judging from the condition of Nakago.

NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.