Nihonto Katana "Kobayashi Seijun" NBTHK Tokobetsu Hozon

Description

ITEM DESCRIPTION:

Comes with kimono or cotton bag. Comes with certificate of supein Nihonto.

Documentation

• Certificate and registration

  Appraisal Certificate NBTHKTokobetsu Hozon

  Title:
  Ichitō-mei Appraisal Certificate.

  Main text:
  Hokuetsu Shinjō resident Kobayashi Seijun forged this.

  Ansei 4 (1857), year of the Snake, second month, auspicious day.

  After examination by this association, it has been determined to be a Tokubetsu Hozon Tōken and is hereby certified as such.

  Public Interest Incorporated Foundation
  The Society for the Preservation of Japanese Art Swords.

  Length stated: 2 shaku 3 sun 5 bu (approx. 71.2 cm).
  

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  SMITH, SCHOOL AND HISTORICAL CONTEXT

  The mei clearly identifies the smith as Hokuetsu Shinjō jū Kobayashi Seijun, active in Echigo Province (Hokuetsu). Seijun is documented as the same individual known as Kobayashi Masaoki, working in the late Edo period.

  Dated Ansei 4 (1857), the blade belongs to the closing phase of the Edo period, immediately preceding the Bakumatsu upheaval. During this era, many smiths sought refined workmanship inspired by classical traditions.

  The Tokubetsu Hozon designation confirms recognized artistic and historical merit.

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  TECHNICAL DESCRIPTION OF THE BLADE

  Hamon
  A well-defined suguha hamon runs consistently along the cutting edge, controlled and even, with subtle internal activity and a natural transition into the kissaki.

  Jihada
  Fine visible itame grain typical of late Shinshintō production. The steel exhibits density and structural consistency.

  Nakago
  Ubu nakago with one mekugi-ana.
  Stable dark patina consistent with age.
  The mei is deeply and confidently cut, proportionally balanced.

  Geometry
  Nagasa approximately 71.8 cm.
  Current measured sori approximately 2 cm.
  Elegant and harmonious sugata.
  Properly proportioned kissaki with smooth yokote transition.

  Overall condition
  Excellent structural preservation. The blade retains clear hamon definition and well-preserved surface structure.

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  MOUNTING

  Presented in custom-fitted shirasaya.

  The shirasaya ensures optimal preservation conditions and emphasizes the intrinsic artistic quality of the blade.