Sources

Sources

Official records: Bunka Isan Online

1. Tachi signed “Masatsune” at the Tokugawa Art Museum, National Treasure (record 125634)
2. Tachi signed “Masatsune” at the Tokugawa Art Museum (record 71142)
3. Tachi signed “Masatsune” of the Hachisuka house, Fukuyama Museum of Art (record 159255)
4. Tachi signed “Masatsune” at the Tokyo National Museum (record 203649)
5. Tachi signed “Masatsune” at the Kyoto National Museum (record 192753)
6. Tachi signed “Masatsune” of the Arima house of Maruoka (record 194916)
7. Tachi signed “Masatsune” of the Ogasawara house of Kokura (record 194566)
8. Tachi signed “Masatsune” of the Kōsetsu Bijutsukan (record 198473)
9. Tachi signed “Masatsune” at the Kyūshū National Museum (record 549178)

Museums

1. NBTHK, Japanese Sword Museum: tachi signed “Masatsune”, Important Cultural Property
2. Kyoto National Museum: katana with the folded signature “Masatsune”
3. ColBase: tachi F-183 of the Tokyo National Museum
4. e-Museum: “Masatsune” tachi of the Ko-Aoe, Tokyo National Museum (so as not to confuse them)

Encyclopaedias and studies

1. Japanese Wikipedia: 正恒 (Masatsune)
2. Japanese Wikipedia: 古備前派 (Ko-Bizen-ha), the Ko-Bizen school
3. English Wikipedia: List of Wazamono
4. Japanese Sword Index: Bizen

Image credits

1. Tachi signed “Masatsune” with its mounting, Tokyo National Museum (tachi-masatsune-tnm-f183.jpg)

   ColBase (Tokyo National Museum), CC BY 4.0, via Wikimedia Commons.

2. Poster of the video of the National Treasure tachi (video-E_n0KPjfxcM.jpg)

   Still: 迫田貫路 (probable reading: Sakoda Kanji), on YouTube.

3. Poster of the video of the sword gallery of the Tokyo National Museum (video-wyGEp0txVo8.jpg)

   Still: 迫田貫路 (probable reading: Sakoda Kanji), on YouTube.

4. Poster of the clip of the tachi on display (video-mdSOqXZVGCY.jpg)

   Still: 渡部亨 (probable reading: Watanabe Tōru), on YouTube.