Katana in Shirasaya (NBTHK Tokubetsu Hozon Paper)
Signature:Bizenno suke Fujiwara Munetsugu
Bunkyu 3 Nen 8 Gatsuhi (1863 August)
Shinshinto: Jyo-jyo saku ranking : Musashi province.
The blade was polished.
Habaki : Gold Foiled double habaki.
Blade length : 70.65 cm or 27.81 inches.
Sori : 1.58 cm or 0.62 inches.
Width at the hamachi : 3.13 cm or 1.23 inches.
Width at the Kissaki : 2.21 cm or 0.87 inches.
Kasane : 0.77 cm or 0.3 inches.
Era : Late Edo period.
Shape : The blade is wide and thick with nice sori and long kissaki nice looking shape.
Jitetsu :Koitame hada well grained with jinie attach beautiful texture.
Hamon : Koniedecki like nioideki style gunome midare Choji midare decree Sakasa choji mixed with ashi scatter.
Boshi is midarekomi boshi.
Special feature : Munetsugu was born at Shirakawa province and younger brother of Koyama Munehira.
He studied from Kato Tsunahide which is called Koyama so-bei.
After that he moved to Edo and sword maker of the Daikyo Kuwana family.
He lived Yotsuya Saemon cho in Akasaka Azabu and studied from Yamada Asaemon about cut well swords.
Therefor his some swords exist Tameshigiri (cutting test) by Yamada Asaemon.
According to the Fujishiro book, Kiyomaro made sword Tanrenjyo(making sword factory) in Iga city in Yotsuya near by Koyama Munetsugu without any greeting. So Koyama Munetsugu got angry and apply cartel to Kiyomaro.
It is interesting Japanese culture at that time.
He was making sword until Meiji 2nd year before Haito-rei（decree banning the wearing of swords).
Historical Background: 1846 Kouka 1st year, American ambassador James came to Japan off shore of Sagami Uraga city off shore and apply freedom of trade to Japanese government.
NBTHK Tokubetsu Hozon Paper.
Aoi Art estimation paper : whole Oshigata.
Price : JPY 1,800,000-.