https://www.sothebys.com/en/buy/auction/2021/the-samurai-japanese-arms-and-armour/a-tachi-signed-zen-hakushu-nobutaka-nyudo-edo
A Tachi | Signed Zen Hakushu Nobutaka nyudo | Edo period, dated
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https://iffr.com/en/person/yoshino-nobutaka
Yoshino Nobutaka - IFFR EN
yoshinonobutakaiffren
https://nakaharanobutaka.com/
Nakahara Nobutaka
nakaharanobutaka