Hamon, slightly strange and possible over polish

[Northeastern Port]

Hello everyone!  My question is about this hamon.  Does this look strange to anyone else?  It runs quite close to the edge and has the repeating pattern of high points that fade out in places before connecting back into the main hamon pattern.  Any thoughts or input would be informative and much appreciated!

 

[John C]

I don't think the presence of the peaks are too concerning. I believe they are used, when applying the clay, to relieve stress in the edge of the blade to prevent cracking. But why do they look like that? Not sure. Maybe some kind of acid polishing has brought them out that way.

John C. 

[PNSSHOGUN]

Potentially Mino (later generation Kanemoto?) that has been polished down. The Sanbonsugi peaks have become disconnected and now appear like Tobiyaki.

[Bruce Pennington]

Cool!  Looks like pine trees!  But I know nothing of these things, just wanted to compliment your beautiful blade.  Someone will chime in soon.

[rematron]

2 Duplicate threads. @Brian

[Alex A]

 Tobiyaki

 

Though does appear unusual. In that some appears to be joined and some isn't. 

 

I quite like it, different.

 

https://markussesko....tei-3-hamon-boshi-1/

 

Ps, it is close to the edge, usually the result of seeing quite a few polishes. 

 

Tell us more about what you know about the blade, might make it easier.

[Northeastern Port]

Thank you for the insight!  I’ve been studying blades for a little while and this one just looks different to me.  I hope it’s not acid etching doing that.  It does have NBTHK Hozon papers so it must be legitimate, correct?  Any other knowledge would be greatly appreciated. 

[Northeastern Port]

Thank you for the insight!  I realize that I made a double post and that will not happen again.  The NBTHK Hozon papers for this blade have been posted in the duplicate thread which I will post here as well.  I’ve asked Brian for help in combining both threads into one.  Any other knowledge is greatly appreciated.

Thank you.

 

John F

[Alex A]

Cant see, Mino Kanenori?

 

Hamon looks Mino.

[Jussi Ekholm]

I do think it is very worn down and the hamon has been partially disconnected from original form. See a different example explained here by Usagiya. 4) Grinding iai master's blade.

 

http://www.ksky.ne.j...isodes.html#grinding

[Alex A]

Nice one Jussi, explains it.

[Northeastern Port]

Yes!  I remember having read this before!  I love all of the write-ups on this website!  Thank you guys for helping guide me in the correct direction.  I wonder if this grinding down into/through the hamon lessens the strength of the hardened edge?  Or any other negative effects that could come from this.  Here’s a picture of the munemachi.  It doesn’t seem too steeply angled with over polishing.  Maybe I’m incorrect?  This is very informational for me and the insight is greatly appreciated!

Thank you

John F

[Alex A]

Hi John, 

 

Goes hand in hand with collecting old historic swords of that time that have seen many polishes. 

 

Your looking at a sword that is not now as it once was.

 

Hence why some look to swords that are later, Shinshinto and even modern.

 

Horses for courses.