細節
A SHINSHINTO BIZEN YOKOYAMA KATANA
EDO PERIOD, DATED 1867, SIGNED BISHU OSAFUNE [NO] JU YOKOYAMA SUKEKANE
Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 2 shaku, 3 sun, 1 bu (70.2cm.); curvature (sori): koshi-zori of 1.9cm.;increase in width of blade (fumbari): 1.2cm.
Forging pattern (jihada): ko-itame mokume.
Tempering pattern (hamon): kobushigata choji midare in ko-nie.
Point (boshi): flame-brushed tip (hakikake).
Tang (nakago). Shape (keitai): regular and unshortened (ubu); file marks (yasurime): sujikai; end (nakagojiri): ha-agari kurijiri; holes (mekugi-ana): one; signature (katanamei): Bishu Osafune [no] ju Yokoyama Sukekane; inside: dated Keio 3 (1867), 8th month, Tomonari 58 dai mago (58th generation grandson).
Shirasaya.
Accompanied by a tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 5500107, dated Showa 55 (1980); and a koshu tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 19513, dated Showa 55 (1980).
EDO PERIOD, DATED 1867, SIGNED BISHU OSAFUNE [NO] JU YOKOYAMA SUKEKANE
Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 2 shaku, 3 sun, 1 bu (70.2cm.); curvature (sori): koshi-zori of 1.9cm.;increase in width of blade (fumbari): 1.2cm.
Forging pattern (jihada): ko-itame mokume.
Tempering pattern (hamon): kobushigata choji midare in ko-nie.
Point (boshi): flame-brushed tip (hakikake).
Tang (nakago). Shape (keitai): regular and unshortened (ubu); file marks (yasurime): sujikai; end (nakagojiri): ha-agari kurijiri; holes (mekugi-ana): one; signature (katanamei): Bishu Osafune [no] ju Yokoyama Sukekane; inside: dated Keio 3 (1867), 8th month, Tomonari 58 dai mago (58th generation grandson).
Shirasaya.
Accompanied by a tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 5500107, dated Showa 55 (1980); and a koshu tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 19513, dated Showa 55 (1980).