Moritusugu is a Smith of the Kongobyoe School of warrior monks whose ancestors repelled the Mongol attempt to invade Japan in the years 1274 and 1281 AD. Many or who became Master Swordsmiths in a period at the height of the country at war when the development and quality reached it's peak known as the Golden Age of the sword.

Moritsugu, born at the end of the Kamackura period was the son of Morimasa and the grandson of Moritsuna and the great grandson of Moritaka. Moritsugu's workmanship reflects the style and shape with deep Sori. The sword displays a well grained Hada in a pronounced Itame Jigane and faded Utsuri. The Hamon is in Suguha style with Sunagashi and Kinsuji. The sword is in it's original length with one Meguki and rarely found in this school and period due to shortening of many of the swords in a later period also many of the swords of this school were unsigned due to the fact they were employeers of the monasteries and changes to the style of sword play resulted in the shortening of many swords.

Also, many of the signed blades that were shortened caused the signatures to be lost.

For research purposes, this sword is an excellent example of a completely orignal sword of the period. A rare find awarded the NBTHK Tokubetsu Kicho quality award.