Hada Question

[Prewar70]

What is this line? It is not present on both sides of the sword.

[Stephen]

looks like one side got a acid wash...mho

[ROKUJURO]

James,

 

it is just a layer from the folding of the steel.

In most swords the steel is so refined that only the fine structure of the HADA is present. Together with certain blade construction principles, this phenomenon can also indicate the 'border line' between two different steel alloys.

 

[Ken-Hawaii]

I think Stephen is right, James. Tired areas would be more concentrated, rather than the long wave-like effect.

 

Ken

 

[Ruben]

Hi James,

 

is it a very old?

 

Greetings

[John A Stuart]

This is a very common phenomenon especially in the Masame type and often seen especially in Minoto in the Ji. It in no way reduces the integrity of the sword, given it isn't ridiculously Ware. John

[ROKUJURO]

....which this sword shows in the MUNE (first photo). A typical welding flaw.

[Prewar70]

[ROKUJURO]

James,

this one is easy: BISHU OSA (unsually followed by FUNE no JU plus smith's name).