Shape of Sword : Periodical Comparison
The shape of the Japanese sword has undergone many changes in accordance with the combat method of the time, for example, when the Samurai battled on horseback, the Japanese swords of the time was long and curved noticeably.
Understanding shape differences is an important part of Japanese sword appraisal. The following breakdown shows the average cutting edge length, the size and the type of Sori, the average width and the Kissaki for each period.
|1100-1221||75 – 80 cm||Shallow and Koshi||Narrow and Tapered||Small|
|1222-1289||75 – 80 cm||Deep and Wa||Wide and Untapared||IKUBI|
|1290-1333||80- 85 cm||Deep and Wa||Narrow and Untapared||Medium|
|1334-1393||85 – 90 cm||Medium and Wa||Wide and Untapared||Large|
|1394-1466||73 – 76 cm||Deep and Saki||Wide and Untapared||Small|
|1467-1595||64 cm||Shallow and Saki||Wide and Untapared||Medium|
|1568-1615||73 – 76 cm||Shallow and Saki
||Wide and Untapared||Large|
|1661-1681||70 cm||Shallow and Saki||Medium and Untapared||Medium|
|1688-1704||70 cm||Deep||Medium and Untapared||Medium|
|1853-1867||75 – 79 cm||Medium||Narrow and Untapared||Medium|