MS-198 Sekishu Sadatsuna

Long sword from the famous Nanbokucho period. It was during this time that Japan was engulfed in a huge civil war, and swords became massive in size and length. Many high quality blades were made during this time, which were later shortened to be used as standard katana during the Edo period.

This sword which has a very nice hamon done in the Soshu style has much activity within the Niedeki hamon. Kinsuji and sunagasshi appear through the heads of the gunome hamon. The jigane shows Jifu utsuri with a strong Itame masame hada. Chikei is present throughout the Ji. The blade has a well cut groove that runs through the tang. The tang is osuriage mumei , which means that it has been greatly shortened , thus losing its signature. Even though this blade has not yet been certified, with a trained eye, one can see that this is a classic blade from the late 1300’s. The blade has also been looked at by a member of the NBTHK before and was given the opinion of Sekishu Sadatsuna, number one student of Naotsuna one of the 10 disciples of the great sword smith Masamune. The blade has a silver habaki that is probably from the 1800’s.

The mount is very nice. The handle consist of a a very nicely carved set of deep waves done in the style of the Omori School. The menuki are well done lobsters done in gold and shakudo. The tsuba is a solid iron plate with sayadome ana, which shows that this tsuba belonged to a Bushi with possibly a short temper, as these holes were used to help stop the drawing of the blade too prematurely. The scabbard is the traditional smooth black lacquer.


Unsigned – attributed to Sekishu Sadatsuna.

26 7/8”