Mumei, Osafune KiyomitsuLate Muromachi Period (1392-1573), circa 1560NBTHK Hozon Tōken-Nagasa [length]: 74.3 cmSori [curvature]: 2.4 cmMotohaba [bottom width]: 3 cmSakihaba [top width]: 2 cmMotokasane [bottom thickness]: 7 mm-Sugata [configuration]: Shinogi-zukuri, iori-mune, elongated chu-kissakiKitae [forging pattern]: Mokume hada with jinie.Hamon [tempering pattern]: Gunome midare and ko-choji midare in nie-deki on the omote side; ko-notare and gunome midare on the ura side. Ashi, yō, sunagashi and kinsuji.Boshi [point]: Notarekomi with hakikake kaen.Nakago [tang]: O-suriage,...