Early Edo Period (1615-1867), circa 1650Signed 肥前國河内大掾藤原正廣Hizen kuni kawachi daijō Fujiwara MasahiroNBTHK Hozon Tōken Nagasa [length]: 72 cmSori [curvature]: 1.4 cmMotohaba [bottom width]: 2.9 cmSakihaba [top width]: 2.1 cmMotokasane [bottom thickness]: 5.5 mm Sugata [configuration]: Shinogi-zukuri, iori-mune, koshi-zori, chu-kissakiKitae [forging pattern]: Ko-itame hada and konuka hada typical of Hizen. Jinie.Hamon [tempering pattern]: Gunome midare in nie-deki with thick nioiguchi. Ashi, yō, long sunagashi and kinsuji.Boshi [point]: Round at the end with hakikake kaeriNakago [tang...