[ Feature ]
Form : HIra-zukuri. Iori-mune. Both mihaba and kasane are ordinal. No sori attached. Small size elegant tanto form.
Nakago : Ubu. Yasurimes are suji-kais with kesho-yasuri. Saki is shallow kuri-jiri. One hole.
Jigane : Ko-itame-hada well grained. A little, o-hada-gokoro mixed. Fine jinie attached.
Hamon : Chu-sugu-ha. Ko-nie attached. Nioi-kuchi is so bright.
Boushi : It has sugu form. It turns in ko-maru shape.

[ Highlight ] Takahashi Sadatsugu (1902-1948), whose real name was Takahashi Kinichi, was a swordsmith from Ehime. He was influenced to become a swordsmith by his older brother, Yoshimune Takahashi, and in 1917 he became a student of Gassan Sadakazu and Gassan Sadakatsu. After working as an instructor for the Central Sword Association and making swords in his home town of Saijo, he established his own swordsmithing workshop in Matsuyama in 1930. He received numerous awards, including the Prime Minister's Prize at the New Japanese Sword Exhibition, the Minister of Education Prize, the Minister of Army Prize, the Minister of Navy Prize, and the Special Prize at the Created Swords Exhibition. A master of the Yamashiro, Yamato, Bizen, Soshu and Mino schools of swordsmanship, he is renowned for his excellent carving skills and refined style. In 1955 (Showa 30) he was the first in the metalworking category to be awarded the title of holder of the Important Intangible Cultural Property "Japanese Sword" (Living National Treasure).
　In 1960, on the occasion of the marriage of the current Emperor Emeritus and Empress Emerita, the sword was made as a guard of honour for the current Empress Emerita, and this tanto sword was made from the leftover iron from the same year.

[ Conditions ] Minor flaws and clouding due to storage.