61|Part 2 of — 27 Shin-to Main 7 Regions (part A)

Chapter 61 is a detailed part of Chapter 27, Shinto Main 7 Regions (part A).  Please read Chapter 27 before reading this section. 

0-timeline - size 24 Shin-to                        The red circle above indicates the time we discuss in this section

Chapter 27, Shin-to Main 7 Regions (Part A), and Chapter 28, Shin-to Main 7 Regions (Part B), describe an overview of the seven main regions.  This chapter and the next chapter show photos of representative swords from these regions.  They are Yamashiro (山城, in Kyoto), Settsu (摂津, today’s Osaka), Musashi (武蔵, Edo), and Satsuma (薩摩, Kyushu).  However, Echizen (越前), Kaga (加賀), and Hizen (肥前) are omitted.

29 Map with number 7

With ko-to swords, features such as the condition of the hamon, kissaki size, length, and  shape of the nakago, etc., indicate when the sword was made.  During the ko-to period, Bizen swordsmiths produced Bizen-den swords, Yamashiro swordsmiths made Yamashiro-den swords, and Mino swordsmiths made Mino-den swords.  However, during the shin-to period, that is not the case.  The den and the swordsmith’s location often do not match.  For shin-to swords, we study the swordsmiths and swords from the seven main regions along with their characteristics.

Regarding swords made during the ko-to period, if a sword has a wide hamon line with  nie, usually, its ji-hada shows a large wood grain or a large burl grain.  Also, when you see a narrow hamon line, it typically features a fine ji-hada.

However, with shin-to swords, if a sword shows a wide hamon with nie, it often has a small wood grain or small burl grain pattern on ji-hada.  If it has a narrow hamon line, it may have a large wood grain pattern on the ji-hada.  This is a shin-to characteristic.   

Here is an exception: some early Soshu-den swords from the late Kamakura period may show a wide hamon with nie, which has small burls on the ji-hada.  Because of that, whether it is ko-to or shin-to can be confusing.  Even so, other features such as ji-hada or other parts should indicate whether it is shin-to or ko-to.

Yamashiro (山城: Kyoto)

 Horikawa Kunihiro   (堀川国広)   From Sano Museum Catalogue (permission granted)

Horikawa Kunihiro (堀川国広)

Horikawa Kunihiro was regarded as a master swordsmith among shin-to swordsmiths.  He forged swords in many styles with various characteristics.  The hamon types are o-notare, o-gunome, togari-ba (pointed hamon), chu-suguha with hotsure (frayed look), hiro-suguha with a sunagashi effect, inazuma, and kinsujiKunihiro preferred to shape his swords to resemble an o-suriage (shortened Nanboku-cho style long sword).  Kunihiro‘s blades give a powerful impression.  Kunihiro‘s swords often feature beautiful carvings; designs include dragons, Sanskrit letters, and more.  Because he created swords in many different styles, there is no general characteristic that defines his work other than the hamon mainly being nie.  His ji-hada is finely forged.                                                                                                                                                                                                                                                                                                                                                     

img067.jpg  img068.jpg      Iga-no-Kami Kinnmichi (伊賀守金道)           Dewa Daijyo Kunimichi (出羽大掾国路)        Both Juyo Token (重要刀剣), once my family owned, photos were taken by my father.

Iga-no-Kami Kinmichi ( 伊賀守金道)

The Kinmichi family is called the Mishina group.  Refer to 27 Shinto Main 7 Regions  Part A.   Iga-no-Kami Kinmichi was awarded the Japanese Imperial chrysanthemum crest. 

The characteristics of Kinmichi ——– Wide sword, shallow curvature, an extended kissaki, sakizori (curvature at 1/3 top),  a wide tempered line, kyo-yakidashi (see 27 Shinto Main 7 Regions  A ), hiro-suguha (wide straight hamon), o-notare (large wavy), yahazu-midare, hako-midare (refer to 24 Sengoku Period Tanto).  Mishina-boshi, refer to 27 Shin-to Main 7 Regions A.  Fine wood burl, masame appear in the shinogi-ji area.   

Dewa Daijo Kunimichi (出羽大掾国路)                                                                                 

Dewa Daijo Kunimichi was the top student of Horikawa Kunihiro.  The right photo above.  Like Kunihiro, the sword resembles a shortened Nanboku-cho sword.  Shallow curvature, a wide body, a somewhat elongated kissaki, and fukura-kareru (less arch in fukura).  Wide tempered lines, large gunome, nie with sunagashi, or inazuma shows.  Double gunome (two gunome side by side) appears.  Fine ji-hada.                                                                                                                                                                                                                

  1. Settu (摂津) Osaka (大阪 )

Settu (Osaka) is home to many famous swordsmiths.  They are Kawachi-no-Kami Kunisuke (河内守国助), Tsuda Echizen-no-Kami Sukehiro (津田越前守助広), Inoue Shinkai (井上真改), and Ikkanshi Tadatsuna (一竿子忠綱), among others.                          The main characteristic of the Settsu (Osaka) sword ——– The surface is beautiful and fine, almost like a solid surface with no pattern or design.  The two photos below are of the Settsu sword.

              Ikkanshi Tadatsuna from the Sano Museum Catalogue.  Permission granted to use.

Ikkanshi Tadatsuna (一竿子忠綱)

Ikkanshi Tadatsuna was famous for his carvings.  His father was also a well-known swordsmith, Omi-no-Kami Tadatsuna (近江守忠綱)Consequently, he was known as Awataguchi Omi-no-Kami Fujiwara Tadatsuna (粟田口近江守藤原忠綱), as shown in the nakago photo above.     

The characteristics of Ikkanshi Tadatsuna ——-A longer kissaki and a wide-tempered line with nie.  The Osaka yakidashi (transition between the suguha above machi and midare is smooth.  Refer to 27 Shin-to Sword – Main 7 Regions (Part A) for details on Osaka yakidashi.  O-notare with gunome, komaru-boshi with a turn back, and very fine ji-hada with almost no pattern on the surface.

                        Inoue Shinkai (井上真改) from “Nippon-to Art Swords of Japan” The Walter A. Compton Collection

Inoue Shinkai (井上真改)

Inoue Shinkai was the second generation of Izumi-no-Kami Kunisada (和泉守国貞), who was a student of Kunihiro.                                                                                                  The characteristic of Inoue Shinkai’s swords —————- Osaka yakidashi, the tempered line gradually widens toward the top.  O-notare and deep nie.  Very fine ji-hada with almost no surface design.

49| Part 2 of — 15 The Revival of Yamato Den (大和伝復活)

This chapter is a detailed part of Chapter 15, Revival of Yamato Den.  Please read Chapter 15 before reading this section.

0-timeline - size 24 Late Kamakura                          The red circle above indicates the time we discuss in this section

At the end of the Kamakura period, powerful temples expanded their territories in the Yamato region.  Refer to the map below for the location of the Yamato region.  Several prominent temples, especially those with large territories, held political and military power to control the area at the end of the Kamakura period.  These large territories were called shoen (荘園).  They employed many monk soldiers known as so-hei.  The demand for swords increased because of the rising number of Sohei (僧兵).  This increased demand revived the Yamatoden.  

Some prominent temples had their own swordsmiths within their territories. Todaiji Temple (東大寺) supported the Tegai (手掻) sword group.  The Senjuin (千手院) sword group lived near Senju-do (千手堂), where Senju Kannon (千手観音) is enshrined.  The Taima sword group originated from the Taima-ji Temple (当麻寺).  The Shikkake group (尻懸) and the Hosho group (保昌) were also part of the Yamato-den sword groups.  These five groups are known as Yamato Goha (the Yamato five groups).

51 Japan map Yamato

General Characteristic of Yamato Den

The Yamato-den (大和伝) sword always shows masame (柾目: straight grain-like pattern) somewhere on the ji-hada, ji-gane, or hamon.  Refer to Chapter 15, Revival of Yamato Den.   Masame is sometimes mixed with mokume (burl-like pattern) or itame (wood-grain-like pattern).  Either way, Yamato-den always shows masame somewhere.  Some swords display masame across the entire blade, while others show less.  Because of the masame, the hamon often shows sunagashi (a brush stroke-like pattern) or a double line called niju-ha.

Taima (or Taema) group (当麻)

  • Shape ———————– Middle Kamakura period style and Ikubi-kissaki style    
  • Hamon ———–Mainly medium Suguha.  Double HamonSuguha mixed with Choji.  Often shows Inazuma and Kinsuji, especially Inazuma appear under the Yokote line.
  • Boshi ————————- Often Yakizume.  Refer Yakizume on 15| The Revival of Yamato Den(大和伝復活)
  • Ji-hada ——————– Small wood grain pattern and well-kneaded surface.  At the top part of the sword, the wood grain pattern becomes Masame.

Shikkake Group (尻懸 

  • Shape —————- Late Kamakura period shape. Refer 14| Late Kamakura Period: Sword (鎌倉末太刀) 
  • Hamon ————————- Mainly Nie (we say Nie-hon’i).  Medium frayed Suguha, mixed with small irregular and Gunome (half-circle pattern).  A double-lined, brush-stroke-like Pattern may appear.  Small Inazuma and Kinsuji may also be shown.      
  • Boshi ———————— Yakizume, Hakikake (bloom trace like pattern) and Ko-maru (small round)     
  • Ji-hada ———- Small burl mixed with Masame.  The Shikkake group sometimes shows Shikkake-hada (the Ha side shows Masame, and the mune side shows burl.)

Tegai Group ( 手掻 )

  • Shape —— Early Kamakura style with thick Kasane (body).  High ShinogiKoshizori.
  • Hamon ————- Narrow tempered line with medium Suguha hotsure (frayed Suguha).   Mainly Nie.   Double tempered line.  Inazuma and Kinsuji may show.                                                                 
  • Boshi ————————————— Yakizume (no turn back), Kaen (flame-like).   
  • Ji-Hada ————————————————— Fine burl mixed with Masame. 

51 Kanenaga photo Yamato51 Kanenaga ilustration Yamato

Tegai Kanenaga of Yamato.  From the Sano Museum Catalogue (permission granted).   The illustration (called Oshigata) shows notare (wave-like hamon) and suguha-hotsure (frayed suguha pattern) with kinsuji.

My Yamato sword Acquired at the Annual San Francisco Swords Show.

Characteristics: Munei (shortened and without signature).  Yamato-den, Tegai-ha (Yamato school Tegai group).  Length is two shaku, two sun, eight &1/2 bu (27 1/4 inches), small kissaki and funbari. HamonNiju-ba, Sunagashi.  Boshi: Yakizume.  Ji-hada: Itame with masame, Nie-hon’i .                                                                                                                                     

My Yamato sword

The full view of the sword and Kantei-sho (NBTHK Certification). “Tokubetsu Hozon Token”.

My Yamato sword 5

My Yamato sword 4

My Yamato sword.jpg 2

My sword: acquired at Dai Token Ichi (大刀剣市)Bizen Osafune Tomomitsu (備前長船倫光) Length: 2 feet 4 inches,  Shape: Shinogi zukuri,  Hada:itame midare-utsuri, Hamon: konotare gunome choji

48|Part 2 of — 14|Late Kamakura Period Sword : Early Soshu Den (鎌倉末刀)

This is a detailed section of Chapter 14| Late Kamakura Period Sword.  Please read Chapter 14 before this part.

0-timeline - size 24 Late Kamakura

                         The red circle above indicates the time we discuss in this section.

14 Ikubi kissaki Damadge

In Chapter 14, “Late Kamakura Period Sword (鎌倉末太刀),” the ikubi-kissaki sword is explained.  The illustration above shows a flaw caused when the damaged area was repaired.  To compensate for this flaw, swordsmiths developed a new sword style during the late Kamakura period.  They forged swords with a longer kissaki and lowered the tip of the hi below the yokote line.   This way, if the yokote line were lowered during repairs, the tip of the hi would remain below the yokote line.

15 Masamune (Sano)   15 Masamune hamon (Sano)

The above photo shows a sword by Goro Nyudo Masamune (五郎入道正宗).  Please observe the size and shape of the kissaki.  This differs from the previous ikubi-kissaki and ko-gissaki stylesThis style represents a typical late Kamakura period kissaki style.  It is o-suriage (a largely shortened form). 

Under the Kamakura Bakufu, many swordsmiths moved to KamakuraThey were Toroku Sakon Kunituna (藤六左近国綱) of the Yamashiro Awataguchi group (山城粟田口), Fukuoka Ichimonji Sukezane (福岡一文字助真), and Kunimune (国宗) from the Bizen area.  They were the origin of Soshu-den (相州伝)Eventually, Tosaburo Yukimitsu (藤三郎行光) and his famous son, Masamune (正宗), emergedIn the drawing above, kinsuji and inazuma are shown within the hamon.  The shining lines inside the hamon are inazuma and kinsuji.  Inazuma and kinsuji are collections of nie.  Masamune is well-known for his inazuma and kinsuji.  He lived in Kamakura, a seaside town, and his hamon resembles ocean waves when viewed from the side.

50 part 2 of 15 吉岡.photo 50 part 2 of 15 吉岡

The picture above shows a sword made by the swordsmith Yoshioka Ichimonji group (吉岡一文字).  The kissaki resembles one of Masamune’s swordsIt is longer than the previous ikubi-kissaki or ko-gissaki.  This is chu-gissaki.  The kissaki, like this, is one of the key points in determining the period when the sword was made.  The hamon has choji, gunome, togariba (pointed tip), and very tight nie.

50 part 2 of 15 運生 photo 50 part 2 of 15 運生 

The photo above shows a sword by Ukai Unsho (鵜飼雲生) from Bizen-den.  This sword is also from the late Kamakura period, but it has a ko-gissaki.  This sword does not have the late Kamakura period chu-gissaki style.  Narrow hoso-suguha are more characteristic of an earlier time than the late Kamakura periodThis sword indicates that swords do not always exhibit the style of their period.  To kantei*: first examine the style and shape, then give yourself an idea of the period it was made in.  However, the kissaki in this case does not indicate the late Kamakura period.  The next step is to look at the various characteristics of the sword one by one, such as the hamon, nie or nioi, ji-hada, etc., to determine the period, the den, and the province, and then come up with the name. This process is called kantei.

*Kantei – the process of identifying a swordsmith’s name by analyzing the sword’s characteristics without seeing the mei (the inscribed smith’s name).  The mei might be gone if it has been shortened.   All the photos above are from the Sano Museum Catalogue.  Permission to use them is granted.

41| Part 2 of — 8 Middle Kamakura Period: Yamashiro Den 鎌倉中期山城伝

This chapter is a detailed part of Chapter 8| Middle Kamakura Period –Yamashiro Den(鎌倉中期山城伝).   Please read Chapter 8 before reading this chapter.

0-timeline - size 24 Middle Kamakura

      The red circle indicates the time we discuss in this section

During the middle Kamakura period, the Yamashiroden consisted of 3 main groups: the Ayano-koji (綾小路) group, the Awataguchi (粟田口) group, and the Rai (来) group.

When referring to a specific group, we use terms like “xxx ha,” “xxx ippa,” or “xxx ichimon.”   We use these three terms interchangeably.  They all mean “group.”   For example, when we say “Ayano-koji ippa,” we refer to the Ayano-koji group.

Ayano-koji Ippa (綾小路)

Sugata (shape) —————–Generally, a gentle or graceful kyo-zori shape.  The difference in width between the yokote line and the machi is minimal.  The sword is slender, yet thick, with a small kissaki.                                                                                                                         

Hi and Engraving ———————– Bo-hi (single groove) or futasuji-hi (double grooves) 

Hamon ——————— Nie base with ko-choji (small clove shape) and ko-midare (small irregular).  Small inazuma (lightning-like lines) and kinsuji (golden streaks) may be present.   Double ko-choji (two ko-choji side by side) may appear.   

Boshi (tempered line at the kissaki area) ———————– Ko-maru (small round), yakizume (see the illustration below ), and kaen (flame-like pattern)   

Ji-hada —————– Small wood grain with a little masame (straight grain).  Ji-nie shows. 

Nakago (hilt) ———————— Long, slightly thick feel  

Ayano-koji Ippa swordsmiths ———-Ayano-koji Sadatoshi (綾小路定利)  Sadanori (定則)        

Awataguchi Ichimon (粟田口)

Many swordsmiths from the Awataguchi Ichimon (or Awataguchi group) were honored as the Goban Kaji (the top swordsmith) by Gotoba Joko, Emperor Gotoba (後鳥羽上皇).  Their general characteristics are as follows.

Sugata (Shape) ————————- Elegant torii-zori (or kyo-zori) shape.     

Hi and Engraving ————– The tip of the hi extends all the way up and fills in the ko-shinogi.   The end of the hi can be maru-dome (the end is round), kaku-dome (the end is square), or kakinagashi.

 

9 «part 2» 大小丸,焼詰,丸角止, 掻流     

              Maru-dome (rounded end)             Kaku-dome (square)          Kakinagashi

  • Hamon ———— The slightly wider tempered line at the bottom, then it becomes narrower at the top.  Nie base (called Nie-hon’i).  A straight tempered line mixed with ko-choji (small cloves) or a wide straight line combined with choji.  Awataguchi-nie appears.  Awataguchi-nie, which refers to a fine, deep, sharp, shiny nie that appears around the tempered line area. Fine inazuma (lightning-like lines) and kinsuji (golden streaks) emerge.

  • Boshi (tempered line at the tip area) —————— Ko-maru (small round)  and/or O-maru (large round).   The return is sharrow.  Yakizume, Nie Kuzure, and Kaen (flame)9-«part-2»-大小丸焼詰丸角止-掻流-1-e1547925390685.jpg

       Yakizume      O-maru     Ko-maru         Yakikuzure

  • Ji-hada ————– Fine ko-mokume (wood swirls) with ji-nie.  Ji-nie is nie on ji-hada. Yubashiri and/or chikei appear.                                                                               
  • Nakago ——————————– Often featuresa two-letter inscription
  • Names of Awataguchi swordsmiths —– Awataguchi Kunitomo (粟田口国友 ),  Hisakuni (久国), Kuniyasu (国安),  Kuniyasu (国安), Kunikiyo (国清)

 Rai Ha ()

The general characteristics of the Rai group are as follows.  However, each swordsmith has their own unique traits.

Sugata (shape) ——– Graceful and dignified.  Thick body.  Rai forged Ikubi Kissaki.         Hi and Engravings ————————- Wide and shallow hi.                                      Hamon ————————- Nie base.  Suguha (straight).  Wide suguha with ko-midare (small irregular) and choji (cloves).  Sometimes, there is a large choji at the lower part and a narrow suguha at the top.  Inazuma and Kinsuji appear around the yokote area.      Boshi ————————————- Komaru, yakizume (see the illustration above)            Ji-hada ——————— Finely forged itame (small wood grain).  Sometimes mixed with masame (parallel grain).  Fine nie.  Rai group’s swords occasionally show yowai tetsu (weak surface), which may be the core iron.    

Rai Ha swordsmiths———————- Rai Kuniyuki (来国行),  Rai Kunitoshi (来国俊) or Niji Kunitoshi (二字国俊),  Ryokai (了戒 ).  Rai Kunitoshi is said to be the son of Rai Kuniyuki. Ryokai is said to be the son of Rai Kunitoshi.

img017

    Rai Kuniyuki (来国行)Once my family sword, photo taken by my father with his  writing.    
9 «part 2» Rai Kuniyuki photo.jpg       Rai Kuniyuki hamon
 
Rai Kuniyuki (来国行)Sano Museum Catalogue (佐野美術館)  (permission granted)

18| Nanboku-Cho Period Sword (南北朝太刀)

0-timeline - size 24 Nanboku-cho

                           The circle indicates the time we discuss in this section

During the Nanboku-cho period, samurai sought large, elaborate, impressive, yet practical swords.  The Soshu-den style sword from Nanboku-cho time was just that.    This was the most popular style at the time.  The Nanboku-cho period marked the peak and height of the Soshu-den sword.  Many swordsmiths moved from other provinces to the Kamakura area and forged Soshu-den style swords.  Other schools and provinces outside the Kamakura area also produced Soshu-den-style swords in their own areas.

 

19 Nanboku-cho Sword style

Sugata (姿: Shape) —————–The original length of a sword ranged from three to five feet, but it was later shortened to about two and a half feet.  A significantly shortened blade is called o-suriage. 

The Nanboku-cho style sword features shallow kyo-zori (also called torii-zori).  Refer to Chapter 5, Heian Period Sword.  The highest curvature occurs around the middle of the body. It has a wide body, high shinogi, narrow shinogi-ji  (Chapter 3, Names of parts),  and thin kasane (blade thickness), which are distinctive features of the Nanboku-cho style.  High gyo-no-mune or shin-no-mune, and sometimes a maru-mune (round back).

19 Nanboku-cho 3 kinds Mune

Hi (: groove) and Horimono (彫刻: engraving) ——– Often, a single hi (bo-hi), double hi, suken (dagger), Bonji (Sanskrit), and/or dragon are engraved on the shinogi-ji area.  Refer to Chapter 3, Names of Parts.

9 Hi, Suken, Bonji

Hamon (: Tempered line) —- The lower part of the body exhibits a narrow-tempered line; gradually, this line becomes wider and showier.  Course nie. O-midare (large, irregular, wavy hamon), Notare-midare (wavy, irregular hamon), and Gunome-midare (a combination of repeated half-circular and irregular hamon). Inazuma and kinsuji (see Chapter 14, Late Kamakura Period Sword) sometimes appear.

19 Hamon Notare 319 Mamon choji gunome19 Hitatsura Hamon Hiromitsu

                                  *From Sano Museum Catalogue ( Permission granted).

Ji-hada (地肌: the area between the shinogi and the tempered line) ———————-Wood-grain pattern (itame 板目). Sometimes tobiyaki (patchy tempered spots) appear on ji-hada.  For ji-hada, refer to Chapter 3, Names of Parts.

Kissaki (切っ先) and Boshi (tempered line at the kissaki area) ———- O-kissaki (long and large kissaki). Fukura kareru (less arc kissaki).  Midare-komi (the body and boshi have a similar tempered pattern), with kaeri-fukashi (hamon deeply turns back), and sometimes hitatsura (entirely tempered).  See the illustration above.

Sword-smiths during Nanboku-Cho Period Soshu Den (school)

  • From Soshu—————————————————Hiromitsu (広光)  Akihiro (秋広)  
  • From Yamashiro ———————————————Hasebe Kunishige (長谷部国重) 
  • From Bizen (called So-den Bizen)——-Chogi (長儀 )group  Kanemitsu (兼光 ) group 
  • From Chikuzen ———————————————————-Samoji (左文字 ) group

Chogi (長義)from The Sano Museum catalog. Permission to use is granted

The distinctive characteristics of the Nanboku-Cho period sword in the photo above      

  • The trace of an engraving of suken on the inside of the nakago indicates that this area was once a part of the main body.
  • Large and long kissaki

14| Late Kamakura Period Sword (鎌倉末太刀)

0-timeline - size 24 Late Kamakura

The red circle above indicates the time we discuss in this section

The beginning of the Soshu style

A new sword style called Soshu-den appeared after the Mongolian invasion during the later part of the Kamakura period.  The Kamakura region became prosperous under the rule of the Hojo family (北条).  Many swordsmiths moved to Kamakura.  These included the Kunitsuna group (国綱)  from the Yamashiro area and Fukuoka Ichimonji Sukezane (福岡一文字助真) and Kunimune (国宗) from the Bizen area.  They are the originators of Soshu-den (相州伝).  A well-known swordsmith, Goro-Nyudo-Masamune (五郎入道正宗), emerged during this time.

15 Soshu sword with explanation

Sugata (Shape 姿) ——- Okissaki (large kissaki: 大切先) and chu-kissaki (medium kissaki: 中切先).   The tip of the hi ends lower (see the illustration below).  Hamaguriha is no longer in style.  The body has become thinner.  The original length was approximately three feet or longer, but most were later shortened to two feet, three inches, or four inches.  The shortened sword is called o-suriage (大磨上).

15 Kissak shape of 4

14 Hi end lower

Hamon——————–Narrow Hamon and wide Hamon.     

Narrow Hamon ——- A mix of Suguha (straight),  Ko-choji (small clove-like pattern), and Ko-gunome (small half-circle pattern).  Small Nie base. (shown below)

10 Nie & Nioi

Wide Hamon ——– Notare midare (wavy).  O-gunome.  Nie base.  Ashi-iri (short line toward the blade, the right drawing below). Inazuma (lightning-like line) or kinsuji (bright line) may appear on a tempered line.  However, inazuma and kinsuji require trained eyes to detect.  It is difficult for beginners to see inazuma or kinsuji.  

15 Late Kamakura Soshu Hamon

Boshi————The main body and boshi have the same type of hamon.  At the tip of the kissaki, angle it back slightly or yakizume.  You might also see o-maru (large round), ko-maru (small round), kaen (flame-like), or nie-kuzureYakizume and kaen (Chapter 12).

15 three boshi name

Ji-hada (between the shinogi and the tempered line) ——-Strong ji-nie (地沸), which are sand-like small dots appearing on the ji (between the tempered line and the mune).  Yubashiri (a cluster of ji-nie), kinsuji (a bright, radiant line formed by nie), inazuma (a lightning-like irregular line), or chikei (similar to kinsuji) may appear on the ji-hada.

15 Yubashiri, Chikei, Inazuma

Late Kamakura Period Soshu School Sword Smiths

From Bizen————–Fukuoka Ichimonji Sukezane (福岡一文字助真) Kunimune (国宗 )   From Yamashiro ————————————–Toroku- Sakon- Kunituna (藤六左近国綱) 

The three swordsmiths mentioned above originated the Soshu-den (school) in Kamakura.  Later, Tosaburo Yukimitu and his son, the famous Goro Nyudo Masamune, emerged.

More  Soshu Den swordsmiths other than above

From Yamashiro (山城)———- Rai Kunitsugu (来国次), Hasebe Kunishige (長谷部国重) From Etchu (越中) province ———————Gou- no-Yoshihiro (郷義弘) Norishige (則重) From   Mino (美濃) province ——————————————-Kaneuji (兼氏) Kinjyu (金重) From   Chikuzen (筑前) province —————————————————-Samoji (左文字)

Goro Nyudo Masamune (正宗): his hamon is like ocean waves. (Sano Museum permission granted)        

Masamune  (政宗)                                          Yoshioka Ichimonji (吉岡一文字)

Once owned by my family