By Fred Weissberg 03/07
Yoshihiro is considered to be one of the most famous sword smiths of all time. Yoshihiro's given name was Matsukura Go Umanosuke and he lived a short but auspicious life. He was a Samurai of the Tomoi family and served the Matsukura in Etchu. Since olden times he has simply been known as Go, the nickname taken from his place of residence. Yoshihiro was active around the Geno period and that would place him toward the end of the Kamakura Era and the beginning of the Nanbokucho Era.
Since the time of Toyotomi Hideyoshi, Yoshihiro is considered to have been one of the Nihon Sansaku (three great smiths of Japan), the other two being Masamune and Awataguchi Yoshimitsu. He is also recorded in the old sword reference books such as Ojakusho and Kokon Mei-zukushi as having been a direct student of Masamune and, indeed, is recorded as being one of the famous Masamune Juttetsu or ten famous disciples of Masamune. In fact, he is generally considered to have been the best of all of Masamune's ten disciples. Depending on the reference quoted, he lived to be about 27 to 30 years of age. Even though his life was brief and his existing works are exceedingly scarce, he left some splendid examples.
There have been several theories about where in the major schools of sword making he should be placed. While his early works show definite Yamato characteristics, I think most scholars agree that he should be placed firmly in the Soshu tradition based upon his interaction with Masamune. Since he comes from Etchu and is a contemporary of the famous smith, Etchu Norishige, some feel that there may have been a teacher-pupil relationship between these two smiths. However, since Norishige is also generally considered to have been one of the ten great students of Masamune. I think it much more likely that they were fellow students rather than teacher-student. I think the similarities in the works of Yoshihiro and NorishigeÂ can be attributed to the fact that both studied under Masamune.
Because of the short life span of Go Yoshihiro his authenticated blades are very scarce. There are no signed examples. In fact, his blades are so rare that there is a saying in Japan, â"You never see a ghost or a Go". In his publication, Nihonto Newsletter, Albert Yamanaka explains this phrase as follows:
"There is a saying in Japanâ"one never sees a ghost or a Go". This means that though we often read about and hear about ghosts, we never see one and the same can be said for Yoshihiro's blades as well. It is that rare. In ancient Japan, when all famous blades were in great Daimyo collections, the populace never did get to see these blades, but heard much about them and the above saying came into being.
As with the smith, Shizu Kaneuji, swords exist from Yoshihiro that are dated to a time before his study under Masamune. Early blades such as these show a strong Yamato influence. Blades made after his studies with Masamune began show strong Soshu characteristics, as one would expect. Yoshihiro is considered to have been not only the best of Masamune's famous students, but the workmanship in his blades is considered to be vary faithful to the style of Masamune, perhaps more so that any of Masamune's other students.
All of the blades by Go Yoshihiro have been given names. These names given to Go's blades are not new as proven by the fact that many named Go blades are listed in the old sword reference books from the Edo period and before.
The following lists the forging characteristics of Go Yoshihiro:
Sugata: The shape of his tachi will be that of the late Kamakura and early Nanbokucho Era. The sori will be a slightly shallow torii sori, though since all of his tachi will have been shortened, it is not easy to visualize their original gracefulness and stature. There are some that are hira-zukuri, but most are shinogi-zukuri, some that are fairly slender, and some that have a wide mihaba with a fairly extended kissaki, but not an o-kissaki. There are a small number of shobu-zukuri wakizashi but no tanto have been authenticated to date.
Jitetsu: The kitae will be ko-itame mixed with nagare-hada. Ko-mokume will also be found on occasion. His early blades will have a strong showing of masame-hada. The ji-hada will resemble that of the Awataguchi School with an appearance of "wetness" to it. Ji-nie will be fine. The nie will become thicker in the area between the ji and the ha, and it will turn into chikei and yubashiri.
Hamon: Most of his hamon consist of a shallow notare mixed with a suguba. The nioi formations are deep, and the nioi-guchi is bright and clear with the presence of kinsuji . There will be much nie within the yakiba and at its edge. It will be kuzure in areas and in these areas there will be long and deep ashi as well as inazuma and kinsuji. The depth and color of Yoshihiro's nie is considered to be one of his supreme accomplishments and the workmanship rivals that of his great teacher, Masamune.
Boshi: Yoshihiro is known for his ichi-mai boshi, but all of his works do not have it. The boshi is either going to be ichi-mai or komaru with kaeri. Within the boshi the nie will be deep and the tempered area will be wide.
Horimono: Bo-hi will be seen on occasion.
Nakago: All works are suri-age with all or most of the original nakago being lost. Generally we find the jiri being kengyo in shape, but occasionally kurijiri and kiri will be found. Kengyo is the most common and is what we find on the blades of Masamune. Often we find shu-mei (lacquer attributions) on Yoshihiro's blades.
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