細節
A Bizen School Katana
Unsigned, attributed to Ichimonji School, Kamakura Period (Late 13th Century)
Sugata [configuration]: honzukuri, mitsumune, ikubi-kissaki, toriizori
Kitae [forging pattern]: itame with mokume, jinie, chikei
Hamon [tempering pattern]: choji of ko-nie, tobiyaki, ashi, midare-utsuri
Boshi [tip]: midare
Horimono [carvings]: bohi on both sides
Nakago [tang]: suriage, one hole
Habaki [collar]: double, copper-gilt
In shirasaya [plain wood scabbard]
Nagasa [length from tip to beginning of tang]: 71cm.
Sori [curvature]: 1.9cm.
Motohaba [width at start of tempered edge]: 3.3cm.
Sakihaba [width before tip]: 2.4cm.