Sources

Sources

Museums and official databases

1. ColBase, Kyoto National Museum: the katana of Sakamoto Ryōma (M甲158)
2. Bunka Isan Online: the katana of Sakamoto Ryōma, catalogued as 吉行作 (Yoshiyuki saku)
3. Agency for Cultural Affairs, Bunkaru magazine: Miyagawa Teiichi (Kyoto National Museum), the 2016 “Sakamoto Ryōma” exhibition
4. ColBase, Tokyo National Museum: katana signed 吉行 (Yoshiyuki) (F-267)
5. Internet Museum: the exhibition at the Edo-Tokyo Museum, 2017

Dictionaries and encyclopaedias

1. 陸奥守吉行 (Mutsu no Kami Yoshiyuki), the smith, Japanese Wikipedia
2. The katana of Sakamoto Ryōma, in the article 陸奥守吉行 (Mutsu no Kami Yoshiyuki) about it, Japanese Wikipedia
3. 刀剣の業物一覧 (Tōken no wazamono ichiran), Japanese Wikipedia

Image credits

1. The katana signed 吉行 (Yoshiyuki) of Sakamoto Ryōma and its tang (ryoma-katana.jpg, ryoma-nakago.jpg)

   Kyoto National Museum, CC BY 4.0, via Wikimedia Commons.