Treasures of JapanA catalogue of Japan's designated cultural properties 2,690 works catalogued

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Important Cultural Property

Letter from Sakamoto Ryoma to Nagaoka Kenkichi on the 5th Day of the 8th Month of Keio 3 (1867)

坂本龍馬関係書状 慶応三年八月五日 長岡謙吉あて
Letter from Sakamoto Ryoma to Nagaoka Kenkichi on the 5th Day of the 8th Month of Keio 3 (1867) (坂本龍馬関係書状 慶応三年八月五日 長岡謙吉あて)
PLATE IImage: Kyoto National Museum, via ColBase — CC BY 4.0
At a glance — Historical Material · Edo period · held by Kyoto National Museum · designated Important Cultural Property of Japan · Sakamoto Ryoma.

Fact Sheet

Designation
Important Cultural Property (重要文化財)
Date
1801–1900
Creator
Sakamoto Ryoma (坂本龍馬、坂本竜馬)
Catalogue ID
cobas-39

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This letter written by Sakamoto Ryôma (1835-67) is addressed to captain of naval rescue troops, Nagaoka Kenkichi (1834-72). It informs him of Ryôma's arrival at the port of Susaki in the domain of Tosa (present day Kôchi Prefecture) and his plans to travel to Kyoto via Nagasaki.

— Museum description: Kyoto National Museum (CC BY 4.0), via ColBase / Japan Search.

Record & Sources

Cite this page: “Letter from Sakamoto Ryoma to Nagaoka Kenkichi on the 5th Day of the 8th Month of Keio 3 (1867)(坂本龍馬関係書状 慶応三年八月五日 長岡謙吉あて).” Treasures of Japan, catalogue no. cobas-39. Kyoto National Museum. https://treasures.yamato-kenkou.com/treasures/letter-from-sakamoto-ryoma-to-nagaoka-kenkichi-on-the-5th-day-of-the-8th-month-of-keio-3/ — entry last verified 1 November 2026.
Full record data (as published in the official catalogue record)
  • Cultural property designation: Important Cultural Property
  • Genre: History
  • Category: Historical materials:Historical records
  • 員数: 1通
  • 分類: 歴史
  • 時代世紀: 江戸時代 末期・19世紀
  • 種別: 歴史資料:文書・記録類

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