Bibliography and credits

Sources

The sources consulted on 4 October 2026, by type. The translations of his Jūyō papers and the descriptions of his blades published by dealers were used to check facts, but are neither cited nor linked; their photos carry the generic credit.

On this page
  1. Sources

Sources

NBTHK: catalogues and lists

  1. NBTHK, English catalogue of the 70th Jūyō session (2025)
  2. NBTHK, catalogue of the 29th Tokubetsu Jūyō exhibition (2026), in Japanese
  3. NBTHK, catalogue of the 29th Tokubetsu Jūyō exhibition, in English
  4. NBTHK, Sword Journal no. 734 (March 2018): the Sa school and its evolution

References

  1. Japanese Wikipedia: 左文字源慶 (Samonji Genkei)
  2. Markus Sesko, KANTEI 1: Sugata 5
  3. Markus Sesko, swordsmiths in the NBTHK monthly exhibitions (1998–2024)
  4. Osaru: Saikaidō (筑前, Chikuzen)

Image credits

  1. A tachi signed 國弘作 (Kunihiro saku): the two sides of the blade. (tachi-kunihiro-hoja.jpg)

    Photo: dealer in Japan.

  2. The tang of the same tachi, with the signature 國弘作 (Kunihiro saku) and the character 國 (kuni) larger. (tachi-kunihiro-nakago-mei.jpg)

    Photo: dealer in Japan.

  3. The oshigata (押形) of the upper part of the same tachi: the temper in ō-gunome. (tachi-kunihiro-oshigata.jpg)

    Photo: dealer in Japan.