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 (this is a translation of  article written by Jakub Zeman, part of his serial of  “unusual types of japanese swords”)

Mumei sue – koto -early shinto hi zukuri blade of katana sword.  Mino,  lneght of blade: 65 cm, sori 1,9 cm, itame hada, nioi deki togariba hamon, bóhi  with marudome,slightly rust´s type fukasabi,in sashikomi polish, habaki in the forhm of  mt. Fuji, wooden koshirae  in shape of cane made from bamboo- shikomizue  (nisemono), koshirae made in era
Meiji (1868 – 1912).

However some pieces of this kind of sword had been seen in history of japan from earlier period  (Up to these days there is  hidden sword used by Oda Nobunaga who lived in 1534 – 1582,  kept in a museum), Meiji era remains most rich in hidden blades.

It was caused by the law called Haitó rei  released in 1876. It forbidded to keep the swords in public, with exceptions of army and police.  So, many samurai was stressed by the fact they are not allowed to keep their swords and started to use hidden blades of varied shapes in canes.

It was usefull device for selfdefence in those hard times in Japanese society.

Also the oficials usually had their sword hidden in cane-like koshirae.  One of them was Keiko Fukutawa Jukichi (1835 – 1901), for example.

The blade used in shikomizue came most often from wakizashi. Katana- types was rare.   Because these blades had to be slight, usually they were filed-down from “mune” and this it why we can see weld crakcs here. ( shingane is outcovered)

Except of bamboo and bamboo-like koshirae of shikomizue, also wooden or plated by Sakuras bark and made from wood can be seen.