13| Late Kamakura Period: Genko (鎌倉末元寇)

0-timeline - size 24 Late Kamakura

                       The circle represents the time we discuss in this section

GENKO 元寇  (1274 and 1281)

The grandson of Genghis Kahn, Kublai Kahn, attempted to invade Japan twice in 1274 and 1281.  Both times, a strong typhoon hit Japan.  Mongols sent a large number of soldiers with all kinds of supplies on a huge number of ships to Japan.  Those ships had to stay side by side and front and back very close to each other in the limited area of Kyushu‘s shore.   When the strong wind came, ships were swayed, hit each other, and capsized.  Many people fell into the ocean, drowned, and lost supplies in the water. Even though Mongol soldiers landed and fought with the Japanese army, they did not have much choice but to leave Japan because of the typhoon and ships wrecking.   As a result of this strong wind, Japan was saved and looked as if Japan won. 

This is the time the famous Japanese word, “Kamikaze” (divine wind) was created. Actually, Mongols had many  superior weapons than the Japanese.  They had guns, while the Japanese did not.  Their group fighting method was much more superior and effective than the Japanese one-to-one fighting method. 

After the Mongolian invasion, the need for changing the style of the Ikubi Kissaki sword became obvious.  When swords were used in a war, the area most frequently damaged was the Kissaki area.  Japanese soldiers used mostly Ikubi-kissaki swords in this war.  An  Ikubi-kissaki Tachi has a short Kissaki.  When a damaged area of the Kissaki was whetted out, the top part of the Yakiba (tempered area) disappears, and the Hi (a groove) goes up too high into the Boshi area (top triangle-like area).  Short Ikubi-kissaki becomes even shorter, and the Hi goes up too high into the Boshi area.  Aesthetically, it is not appealing.  Functionally, it does not work well.  To compensate for the flaw, a new style began to appear in the latter part of the Kamakura period.

14 Ikubi kissaki Damadge

During the latter part of the Kamakura period, the swordsmiths began to create a new swords style to compensate for this fault.  Also, the pride and confidence had grown among people after driving the Mongols away, which reflected on the swords’ appearance. Generally speaking, the Hamon and the shape of the body became stronger and showier.

Kamakura area became a very prosperous place under the power of the Hojo family.  A large number of swordsmiths moved to Kamakura from Bizen, Kyoto, and other places during this time and created a new style.  This is the beginning of the Soshu Den (Soshu is the Kanagawa area now).  Many famous top swordsmiths appeared during this time.

One of the famous swordsmiths is Goro-Nyudo Masamune (五郎入道正宗).  The Masamune’s tomb is in the Honkaku-Ji temple in Kamakura.  That is about a 5 or 6 minutes’ walk from the Kamakura train station. 

While I was attending the sword study group of Mori Sensei (teacher), one of the students I studied with was the 24th generation of the direct descendants of Masamune.  Although he does not bear the name of Masamune, he has been making wonderful swords in Kamakura.  He also makes superb kitchen knives.  The name of his shop is “Masamune Kogei (正宗工芸),and it is located a short walk from  Kamakura station.  To find his place, ask at the information center in the train station.

54 Yamamura 1 54 Honnkakuji 3         May 2019   Mr. Tsunahiro Yamamura and I                    Honkaku-Ji Temple

12| The Middle Kamakura Period: Tanto (Dagger 鎌倉中期短刀)

0-timeline - size 24 Middle Kamakura

The red circle indicates the area we discuss in this chapter 

It is very rare to see a Tanto (短刀dagger) made during the Heian period.  During the middle Kamakura period, a large number of high-quality Tanto were made.  They were called Takenoko-zori shaped Tanto.   Takenoko means bamboo shoot.  The back of the Tanto curves inward slightly.

12Tanto drawing Mid Kamakur

Sugata (shape)———- Hirazukuri.  It means there is no Shinogi, Yokote line.  See the illustration above.  The standard Tanto size is about 10 inches.  The width is not too wide, not too narrow, very well-balanced size.  The body is slightly thick.  High Gyo-no-mune (行の棟) and Shin-no-mune (真の棟)

13 Mune drawing

Hamon (刃文) —————-The tempered area is narrow.  Nie base.   Suguha-midare (straight line pattern with an irregular wavy pattern) or Suguha-choji (straight line pattern with small Choji)The tempered edge line may show a frayed look.

Boshi(tempered line at Kissaki area) ———Yakizume,   Kaen,   Nie-kuzure.

13 Hamon and Hi

Engravings (彫刻 ) ———- Often, different kinds of engravings are done at the lower part of the body.   These may be a groove or two grooves, Sanskrit,  Suken (spear), dragon, etc.  For Sanskrit and spear, look at the illustration inside Chapter 8.

13 Hamon and Hi

Tanto Swordsmiths in the Middle Kamakura Period

Awataguchi group(粟田口)———————————Awataguchi Yoshimitu (粟田口吉光)  Rai group (来) ——————————————————————-Rai Kunitoshi(来国俊)  Soushu Group  (相州) ——————————————Shintougo Kunimitu (新藤五国光)  Bizen group (備前) —————————————————— Bizen Kagemitu (備前景光) Bungo no Kuni Group (豊後の国) ——————–Bungo-no-kuni Yukihira (豊後の国行平)

13 Rai kunimitsu Tanto photo 2  来国光(Rai Kunimitsu)

This Photo by Unknown Author is licensed under CC BY-SA        Creative common  Free media  Attribution-Share Alike 3.0 Unported (CC BY-SA 3.0)

 

11| Ikubi Kissaki (猪首切先)

 
0-timeline - size 24 Middle Kamakura
 
The circle indicates the time we discuss in this chapter.

Through the experience of the war of Jokyu-no-Ran (Chapter 10), the sword’s trend changed to a wider, sturdier, and grander style. The swords made around this time are called Ikubi-kissakiIkubi means a wild boar’s neck.  Ikubi-kissaki style swords have a stout kissaki that looks like the boar’s neck.

The middle Kamakura period was the golden age of Japanese sword making.  Many top swordsmiths created great swords during this time.  Experts agree that there is no mediocre sword among Ikubi-kissaki swords

IkubiKissakiSword  12 Ikubi Kissaki sword style

SUGATA (shape) ——–— Originally 3 feet or longer, therefore it is often shortened in later time.  Wide width, thick Kasane (thick body) with Hamaguri-ha (蛤刃).  Hamaguri-ha means the sword’s cross-section is shaped like a clam (see below).  The difference in the width between the Yokote line area and Machi is minimal.  Shinogi (鎬) is high, and shinogi width is narrow.  The cross-section of an Ikubi-kissaki sword is shown below. 

12 蛤刃と鎬

KISSAKI  —— Ikubi-kissakiIkubi means the neck of a wild boar.  It is thick, short, and stout looking.  Kissaki is short and wide at the Yokote line.  The illustration below shows an exaggerated image of an Ikubi-kissaki.

12 Ikubi Kissak drawing

Hamon (刃文) —— Kawazuko-choji (tadpole-head shape pattern). O-choji (large clove- shape pattern), Ko-choji (small clove-shape pattern), a mix of O-choji and Ko-choji, or Suguha-chojiSuguha-choji has a straight line mixed with Choji pattern (clove-shape).  

12 Hamon Kawazuko-choji                     O-choji                          Ko-choji                  Suguha-choji     (tadpole head)                   (large clove)                (small clove)      (straight and clove)

Boshi(鋩子) ———Yakizume: the hamon ends almost at the tip of kissaki, no turn back.Sansaku Boshi: The hamon narrows at the yokote line, created by Nagamitsu (長光), Kagemitsu (景光), and Sanenaga (真長).  See the below for Yakizume and Sansaku Boshi.                                                                          

12 Yakizume
                                                                

   Yakizume       11 Sansaku Boshi(三作Sansaku-boshi

Ikubi Kissaki Sword Smiths

Fukuoka Ichimonji Group (福岡一文字) —————Fukuoka Ichimonji Norimune (則宗) Kamakura Ichimonji Group(鎌倉一文字) ———— Kamakura Ichimonji Sukezane (助真) Soshu Bizen Kunimune Group(相州備前国宗)——– Soshu Bizen Kunimune (国宗)Bizen Osafune Group(長船)——————Bizen Osafune Mitutada(長船光忠) Nagamitsu(長光)   Ugai Group————————————————————————- Ugai Unji (鵜飼雲次)

11 nagamitsu 1    11 Nagamitsu drawing  Osafune Nagamitsu(長船長光)    From Sano Museum Catalogue (permission granted)         

img028   img027

Osafune Mitsutada(長船光忠)                          Osafune Mitsutada(長船光忠)                        *Were family sword This photo was taken by my father and writings on the white paper were written by him.