Sources

Sources

Museums and heritage

1. ColBase, Kyūshū National Museum: straight double-edged blade by Nobutaka (F10)
2. ColBase, Tokyo National Museum: wakizashi by Hōki no Kami Fujiwara Nobutaka (F-228)

Consulted, without a link

1. Nagoya City Museum (名古屋市博物館, Nagoya-shi Hakubutsukan), records from its collection: wakizashi of 1621, tantō of 1630, katana of 1665, 1678 and 1681 and wakizashi of 1663 and 1667

NBTHK

1. NBTHK, Sword Journal no. 782, March 2022 (in English)
2. NBTHK, Sword Journal no. 745, February 2019 (in English)

Studies

1. Markus Sesko, “Kantei 3: Hamon & Bōshi” series
2. Japanese Sword Index, “Shinto Swordsmith Ranking” (Tomita Kiyama, 1933)

Dictionaries and encyclopaedias

1. 柳生厳包 (Yagyū Toshikane), Japanese Wikipedia
2. 刀剣の業物一覧 (Tōken no wazamono ichiran), Japanese Wikipedia
3. List of Wazamono, English Wikipedia

Image credits

1. Straight double-edged blade by Nobutaka, both sides (ken-omote.jpg, ken-ura.jpg)

   ColBase, Kyūshū National Museum (F10).