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Object information


O-Tenta Masakuni Saku O (Maker)
Masakuni Old (Maker)


A katana in Shirasaya. Sugata: [configuration]: shinogi-zukuri, broad, slight koshizori curve, medium point
Kitae: [forging pattern]: o-itame with much ji-nie
Hamon [tempering pattern]: gunome-choji of nioi with ko-nie
Boshi [tip]: kaen style
Horimono [carving]: kakinagasu bohi with soehi stopping 31.4cm above the mune machi
Nakago [tang]: suriage, katte-sagari file marks, two holes
Habaki [collar]: wood integral with shirasaya
Nagasa [length of blade]: length of blade 71.7cm , length of tang 24.1cm, curve 1.7cm
Koshirae [mounting]: in shirasaya

Although giving an initial appearance of age,and has an inscription suggesting it to be the work of a great 12th-13th century smith, the blade is a 19th century shinshinto and probably shortened around the time of it’s export from Japan at the end of the 19th century.


19th century
Edo period (late)
1800 CE - 1899 CE

Inscription or legends present

  • Location: Shirasaya
  • Text: Masakuni Old
  • Location: Shirasaya

Identification numbers

Primary reference Number: 163215
Stable URI

Audit data

Created: Saturday 6 August 2011 Updated: Tuesday 14 January 2014 Last processed: Sunday 21 March 2021

Associated departments & institutions

Owner or interested party: The Fitzwilliam Museum
Associated department: Applied Arts

Citation for print

This record can be cited in the Harvard Bibliographic style using the text below:

The Fitzwilliam Museum (2022) "Japanese weapons" Web page available at: Accessed: 2022-07-03 15:25:17

Citation for Wikipedia

To cite this record on Wikipedia you can use this code snippet:

{{cite web|url= |title=Japanese weapons |author=The Fitzwilliam Museum|accessdate=2022-07-03 15:25:17|publisher=The University of Cambridge}}

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