죽장검 buddhist master used the jukjjang.(cane katana) 
This Jukjangdo was the age of Chosun dynasty.
During Japanese Invasion of Korea, chosun dynasty in 1592, Samyeong buddhist master used the jukjjang.
It was used by climbing or walking as a stick.
Sometime it was used as a weapon to protect oneself from bandits and beasts. because when you remove the cane, it becomes a katana.

In the Joseon Dynasty, the former Joseon Dynasty used to live in Korea.

Even though they used canes.

They used to be used for defense when they met bandits and wild animals.

Bongsul Stable Anode

Used as a sword blade.

In jukjjang AD, samyeongdang Lee 1593, chief of the seungbyeong,

Used to activate Battle of seungbyeong

*blade length : 73cm  blade was folded 10 times creating 1024 layers
*overall length : 109cm  use cane  145cm
*weight : 1019g  full  152g

http://swordzone.com/shop/step1.php?number=150