ISHIDO CHIKUSHU JU KORETOSHI
It is a flawless shinshinto katana by the late Edo Ishido smith Koretoshi. He worked right up to the end of the Edo period in Keio (1865-1868). He signed Chikushu Ju Koretoshi, like this example, and Chikushu ju Moritsugu Fujiwara Koretoshi (according to Markus’ reference). He passed away in 1886.
Mei: Chikushu Ju Koretoshi
Sugata: shinogi zukuri katana
As mentioned, this is a flawless perfect sword. The jigane is an extremely beautiful, rich ko-itame with chikei and ji-nie. It gives the impression that you are looking at one of the better Hizen smith’s work. The hamon is suguha based, with small ashi. What makes this sword really exceptional is the strong utsuri, which is trademark for shinto Ishido but generally rare in shinshinto.
The shape is a powerful one that evokes the feeling of Nambokucho. The moto-haba is a wide 3.3cm. The blade has an extended kissaki. The kasane is a thick 7.5mm. As mentioned, the blade is signed Chikushu Ju Koretoshi and the nakago is ubu. The sword measures 66.5cm.
This sword has a wooden habaki and is in shirasaya with an old sayagaki dating to the Taisho period. Translation below.
Chikushu ju Koretoshi (Mei)
Hono Hako Zaki Ha Chi Han Gu (Address)
Taisho San Nen Haru San Gatsu (Spring March, 1914)
Tsukamoto Tadaharu (Owner)