Tsuneto (恒遠) is a smith whose signed , raised to at the 28th session in 2024, is described by the as a fine work imbued with archaic elegance and high dignity. The sword registers enter him as ", two-character signature, before Genryaku", and they list two smiths of the name, one of the Genryaku era and one of the Ryakunin era. The published sources transmit him as a member of the Masatsune line and place him as the father of Tochika. The 1984 commentary notes the register entry that makes him Masatsune's son, and judges that the workmanship of his and and the manner of his signature readily confirm his place in the Masatsune group.
His signed works are very few. The 2024 commentary counts fewer than five: a at , the Tokuju itself, and one example in the Tokyo National Museum. Each of the three blades on record carries a two-character signature. On the Tokuju it is cut large with a thick chisel, while on the of Honma's inventory it is cut in a fine chisel toward the . In form the blades show with , the point turning slightly forward toward a small , the shape the published sources describe as general to .
The is an . On the Tokuju it is predominantly , mixed in places with and a flowing tendency, the grain standing slightly, with . Each blade carries a of its own character, a faint on the Tokuju and a prominent on the . The is built on mixed with and . and enter well, attaches evenly, and slight appears. On the the shows an tendency, yet the tempering is clear. The varies from blade to blade: an on the Tokuju , a on the inventory , and on the a pointed on one face and a on the other.
Two registers stand side by side. The first designated in 1967 departs from the narrow that the commentary calls usual for work. Its is wide and takes in large , and the result is flamboyant and brilliant. When the same blade was raised to , the read its , varied in the size of its clusters, as workmanship that suggests the coming of the school. It saw in the blade fresh nuance added to the manner of Masatsune, and on that basis placed Tsuneto as the Ryakunin smith of the registers. The recorded in Honma's inventory of the Imperial collection stands at the other pole. It is a narrow manner with a shallow and , the clouded and growing sparse above the .
The inventory's commentary says of that that extant works are exceedingly few and that its author had hardly seen another, and it values the signature as a good reference. The 1984 commentary likewise treats the as valuable reference material, an example of the . Together the three blades show the Masatsune line working in both a restrained narrow temper and a broader manner that looks forward to .
Three designated works are on record. The Tokuju and the are his two blades in the and tiers, and he has no National Treasure or Important Cultural Property. The of Honma's inventory, formerly in the Imperial collection, is now recorded in the Tokyo National Museum. The Tokuju is illustrated in the Kozan and was transmitted during the domain era in the Akimoto family of Tatebayashi in Kozuke. With fewer than five signed works known, a signed Tsuneto in private hands is among the rarest blades a collector could encounter.