Mumei Tensho Muramasa Blade with Sankozukaken Horimono and JTK Papers

[Zoglet]

2 hours ago, Lewis B said:

Even so Sengo Muramasa's signature style was hako midare

 

Perhaps, but that doesn't delegitimize the other blade styles attributed to him. Merely because the blade I posted is o-notare and more peaceful does not discount possible Sengo school attribution.

[Jacques D.]

14 hours ago, Lewis B said:

Even so Sengo Muramasa's signature style was hako midare

 

Here is hako midare

[Zoglet]

I can't say for sure, but there looks to be some hako midare within the o-notare nioiguchi, as is in the incandescent photo. It could be gunome, however, which were also observed in some of his swords.