23 time line Sengoku Period

The circle indicate the time we are discussing in this section

25 Chukanzori Tanto

Chukan-zori (中間反り)————— The back of Tanto is straight.  Unlike Takenoko zori, Chukan-zori does not bend forward, or does not bend outward.    Hamon (刃文) Tempered line———–Sanbon-sugi (三本杉),  O-notare (大湾),  Yahazu-midare (矢筈乱), Hako-midare (箱乱),  Gunome-choji (五の目丁子),  Chu-suguha (中直刃).    Carving (彫物) —————Often grooves

 

24 Sannbon sugi,hako, yahazu, O-midare)

Tanto Length ———————— Tanto is one Shaku (12 inches ).  Standard size Tanto is called Josun Tanto. This is 8.5 Shaku (about 9 inches).  Longer than Josun is called Sun-nobi Tanto (寸延) Tanto.  Shorter than Josun is called Sun-Zumari Tanto (寸詰).

Takenoko-zori Josun (筍反定寸)  ———– This type of Tanto is made during Sengoku Period looks like Rai Kunimitsu of Yamashiro-den.   Hamon (刃文)———–Hoso-suguha (細直刃).  You see Katai-ha somewhere.  Below illustration.  Masame- hada appears Mune side.   Jitetsu (地鉄)———Whitish surface and sometimes Shirake –Uturi that is the whitish faint cloud-like effect on jitetsu.

 13 Middle Kamakura Period Tanto24 Suguha katai-ha

Sunnobi-tanto (寸延短刀)———-Looks like the one from the end of Soshu-Den. You may see Hitatsura at Sakizori area.  The condition of the Hitatsura shows on the lower part of Tanto, less on the upper part.

25 Sun-Nobi Tanto25 Hitatsura

Hirazukuri Takenokozori- Sunzumari-Tanto———–This is a unique Tanto for Sengoku-period.   Hirazukuri is flat sided sword without a Shinogi, Yokote line, or obvious Kissaki.   Takenoko-zori is the shape of the bamboo shoot, that means the back of the sword bends inward.   Sunzumari is shorter than 9 inches long (shorter than 8.5 shaku, 25 cm).  The width of the lower part of the blade is wide and thick, the width of the tip is narrow and thin.  It has sharp look.  Carving(彫物) ———Deeply carved Ken-Maki-Ryu (a dragon wrapped around a spear).   Hamon (刃文)———–Tempered line is wide.   Nioi base.  Irregular Hamon or wide Suguha (straight) and Chu-Suguha (medium straight).  Return is deep.    Jitetsu (地鉄)——fine and wood burl.

Moroha-Tanto (諸刃短刀)—————-Double-edged blade with a Hamon on both edges. Often Bonji (Sanscrit) is engraved.   About 9 inches long.   Hamon (刃文) ———Tempered line is wide.   Nioi base.  Irregular Hamon or wide Suguha ( Straight) and Chu-Suguha (medium straight).  Return is deep. Jitetsu地鉄——- Fine and wood burl.

25 Moroha Tanto
Moroha Tanto

 

 

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