VARIOUS SCHOOLS
A RIKUZEN DAISHO
Details
A RIKUZEN DAISHO
EDO PERIOD (DAI CIRCA 1650, SHO DATED 1684), DAI SIGNED YASUTOMO, SHO SIGNED OSHU SENDAI [NO] JU YASUTOMO
Dai:Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 2 shaku, 4 sun, 2 bu (73.6cm.); curvature (sori): koshi-zori of 1.3cm.; increase in width of blade (fumbari): 0.9cm.
Forging pattern (jihada): fine wood grain (itame) with masame on the shinogi-ji.
Tempering pattern (hamon): pointed undulations (notare) and undulations (gonome) with ko-nie.
Point (boshi): ichimai with slight kaeri.
Tang (nakago). Shape (keitai): squared and unshortened (ubu); file marks (yasurime): o-sujikai; end (nakagojiri): rounded (kurijiri); holes (mekugi-ana): two; signature (katanamei): Yasutomo.
Sho: Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 1 shaku, 7 sun (51.5cm.); curvature (sori): shallow koshi-zori of 1.1cm.; increase in width of blade (fumbari): 0.9cm.
Forging pattern (jihada): small wood grain (ko-itame).
Tempering pattern (hamon): small pointed undulations (ko-notare) in nioi and nie.
Point (boshi): medium and rounded (chu-maru).
Tang (nakago). Shape (keitai): regular and unshortened (ubu); file marks (yasurime): o-sujikai; end (nakagojiri): rounded (kurijiri); holes (mekugi-ana): one; signature (katanamei): Oshu Sendai [no] ju Yasutomo, dated Jokyo 1 (1684), 8th month, an auspicious day.
Shirasaya.
Accompanied by (for the dai) a Tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 105672, dated Showa 40 (1965); and (for the sho) a Tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 105673, dated Showa 40 (1965). (2)
EDO PERIOD (DAI CIRCA 1650, SHO DATED 1684), DAI SIGNED YASUTOMO, SHO SIGNED OSHU SENDAI [NO] JU YASUTOMO
Dai:Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 2 shaku, 4 sun, 2 bu (73.6cm.); curvature (sori): koshi-zori of 1.3cm.; increase in width of blade (fumbari): 0.9cm.
Forging pattern (jihada): fine wood grain (itame) with masame on the shinogi-ji.
Tempering pattern (hamon): pointed undulations (notare) and undulations (gonome) with ko-nie.
Point (boshi): ichimai with slight kaeri.
Tang (nakago). Shape (keitai): squared and unshortened (ubu); file marks (yasurime): o-sujikai; end (nakagojiri): rounded (kurijiri); holes (mekugi-ana): two; signature (katanamei): Yasutomo.
Sho: Configuration (sugata): with longitudinal ridge line (shinogi-zukuri), shallow peaked back (iori-mune) and medium point (chu-kissaki); length (nagasa): 1 shaku, 7 sun (51.5cm.); curvature (sori): shallow koshi-zori of 1.1cm.; increase in width of blade (fumbari): 0.9cm.
Forging pattern (jihada): small wood grain (ko-itame).
Tempering pattern (hamon): small pointed undulations (ko-notare) in nioi and nie.
Point (boshi): medium and rounded (chu-maru).
Tang (nakago). Shape (keitai): regular and unshortened (ubu); file marks (yasurime): o-sujikai; end (nakagojiri): rounded (kurijiri); holes (mekugi-ana): one; signature (katanamei): Oshu Sendai [no] ju Yasutomo, dated Jokyo 1 (1684), 8th month, an auspicious day.
Shirasaya.
Accompanied by (for the dai) a Tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 105672, dated Showa 40 (1965); and (for the sho) a Tokubetsu kicho token certificate issued by the N.B.T.H.K., no. 105673, dated Showa 40 (1965). (2)