Help Translating Swordsmith Page please

[BruceP]

Someone on the Military Swords of Japan facebook page is needing help translating this page about a smith. Don't need the whole thing translated (though I think that would be interesting) he's just hoping for a date of the sword or smith.

Thanks!!!

[GHP]

Jumyō

Two smiths named Jumyō using the same mei, hundreds of years apart.

1.
寿命 古関 [正応 - 美濃]

左衛門尉と云い、本*大和現と云い、しかし現存する作品はほとんど天文頃以後のもののみである 。

刻銘: 壽命

Jumyō Koseki [Shōō - Mino]

[assigned date is] According to Saemon-no-Jo [a government official] and 本*大和 [too fuzzy to read]; however, the extant works are believed to be after the Tenmon period or later.

Engraved name: Jumyō

• I'm guessing at the "Koseki" pronunciation.
• 壽命 is how it's written prior to 1945.
• The Shōō era was from April 1288 through August 1293

2.
寿命 関 [天文 - 美濃] 末古刀 - 中作

寿命 古関の係＊をひいて、刀銘対々寿命と切るものか、現在世上に認められる寿命はほとんど＊＊天文頃と思われる 作品である、その名前のよい所から武家の祝＊用＊＊として喜ばれた。

刻銘: 壽命

Jumyō Seki [Tenbun - Mino] End of Koto period - Mid-level work

In relation to Jumyō Koseki, the name [mei] has been engraved for generations; [however] recognized in the modern world as mostly a piece that seems to be around the Tenbun/Tenmon era. Samurai families were pleased to have [a sword] from such a good place.

Engraved name: Jumyō

• I'm guessing at "Seki"; same kanji can also be pronounced as "Kan"
• The Tenbun [also called Temmon] era was from July 1532 through October 1555

CAVEAT: I am not a qualified translator.


--Guy