o-suriage katana ...with a wordsmith-shortener sign

[sc72]

Generally speaking, when a katana is o-suriage and the first craftsman's signature has therefore completely disappeared (assuming it existed) but there is that of whoever (I presume) carried out the cutting-shortening operation of the blade in the Edo era. .how much should the signature of the "swordsmith-shortener" be taken into consideration (in terms of the importance of the blade)?

 

[Ray Singer]

When a sword has been shortened and there is a komei inscription ( indicating what the previous inscription was), the stated attribution is not taken at face value. It's only upheld by the shinsa team if the characteristics of the sword itself align with that attribution. For example, a nakago inscription of komei Norishige Tadatsuna suriageru would not receive NBTHK papers if the blade looked like a Nagayama Ikkansai Yoshihiro rather than a Norishige.