Shinshinto Bizen? Sanbon Sugi

[O-Yumi]

   I have an o-tanto(sunnobi?)/ko wakizashi that is mumei and has a sanbon sugi hamon. I have been told it is Bizen and shinshinto. Anyone out there that can narrow my search down some?

 

Sanbonsugi.bmp

[Ray Singer]

Sanbonsugi is a hamon typically associated with Mino, however some smiths in shinshinto times experimented with a variety of different workstyles. Koyama Munetsugu for example sometimes produced sanbonsugi, though Bizen-den is his more common deki. If the sword is mumei, how did this individual determine that the sword is shinshinto Bizen? Generally with a sanbonsugi/togari-gonome hamon I would look to Mino first.

[Geraint]

Dear ?.

 

How have you got to 26 posts without someone telling you to add your name to each post?  That aside pictures will do a power of good with this question.  Look forward to seeing them.

 

All the best.

[Jean]

Geraint, because at the beginning John added it but as time passes we become lazy or we forgot... I added it so it will appear automatically

[Geraint]

Jean.  Thank you!

 

Looking forward to seeing this one when John gets a chance to show us.

 

All the best.

[O-Yumi]

  See attachment on original post.   Thanks, John

[SwordGuyJoe]

Would we call this a true sanbonsugi? Looks more like a loose choji to me, which would line up more to Bizen then would sanbonsugi. But Ray is correct that some of the shinshinto smiths practiced multiple deki, frequently having one that they’re best known for.

[John A Stuart]

I think so Joe. One large two small saki and tane. John

[Ken-Hawaii]

John, I'd vote for a loose choji.

[leo]

The photo is not exactly HD but I think I see a regular togari/gunome variant with this pattern:

 

2 peaks_3 peaks_2 peaks_3 peaks... and so on.

 

The blade looks massive and the nakago looks not too old so I would also vote for shinshinto. Here among others we have Bizen Yokoyama and varous Mino schools. For an appraisal the picture does not show enough details though.

 

Regards, Martin

[SwordGuyJoe]

I was thinking Yokoyama group as well.