Bibliography and credits

Sources

The sources consulted on 4 October 2026. The pages of the dōjō and of the dealers served to check facts, but they are neither cited nor linked.

On this page
  1. Sources

Sources

NBTHK: competitions and exhibitions

  1. NBTHK, results of the 現代刀職展 (Gendai Tōshokuten) of 2019 (『刀剣美術』, Tōken Bijutsu, no. 749)
  2. NBTHK, catalogue of the 現代刀職展 (Gendai Tōshokuten) 2020
  3. NBTHK, catalogue of the 現代刀職展 (Gendai Tōshokuten) 2021
  4. NBTHK, catalogue of the 現代刀職展 (Gendai Tōshokuten) 2022
  5. NBTHK, results of the 現代刀職展 (Gendai Tōshokuten) 2023
  6. NBTHK, catalogue of the 現代刀職展 (Gendai Tōshokuten) 2024
  7. NBTHK, catalogue of the 現代刀職展 (Gendai Tōshokuten) 2025
  8. NBTHK, results of the 現代刀職展 (Gendai Tōshokuten) 2026
  9. NBTHK, English catalogue of the Gendai Tōshokuten 2026 (List of Works)
  10. NBTHK, catalogue of the exhibition 平成の名刀・名工展 (Heisei no Meitō Meikōten), 2019

Encyclopaedias

  1. Japanese Wikipedia, 月山 (Gassan), 刀工 (tōkō)
  2. Japanese Wikipedia, “月山貞利” (Gassan Sadatoshi)

Press

  1. Watches by SJX, interview with Gassan Sadanobu about the MR-G “Gassan” watch (30 September 2019)

Image credits

  1. Gassan Sadanobu at the family dōjō. (comercio-sadanobu-retrato.jpg)

    Photo: dealer in Japan.

  2. His father and master, Gassan Sadatoshi (月山貞利), examines a blade. (dojo-sadatoshi.jpg)

    Photo: the smith himself.

  3. The forge of the Gassan dōjō, amid sparks. (dojo-forja-chispas.jpg)

    Photo: the smith himself.

  4. Sadanobu forging with an assistant. (sjx-sadanobu-forja.jpg)

    Photo: Watches by SJX (© Watches by SJX / Casio).

  5. Katana of 2015 (73.4 cm), both sides. (obra-katana-2015.jpg)

    Photo: the smith himself.

  6. Wakizashi of 2016 (36.2 cm), both sides. (obra-wakizashi-2016.jpg)

    Photo: the smith himself.

  7. Tantō of 2015 (28.2 cm), both sides. (obra-tanto-2015.jpg)

    Photo: the smith himself.

  8. A katana by Sadanobu, in full. (comercio-katana-1.jpg)

    Photo: dealer in Japan.

  9. The same katana, from the other side. (comercio-katana-2.jpg)

    Photo: dealer in Japan.

  10. The point of the katana. (comercio-katana-3.jpg)

    Photo: dealer in Japan.

  11. The base of the blade, with its hi and its notare. (comercio-katana-6.jpg)

    Photo: dealer in Japan.

  12. A red-hot block of steel in the forge. (sjx-acero-fragua.jpg)

    Photo: Watches by SJX (© Casio / Watches by SJX).