[dsfyu404ed]

The illustrative picture on that article is absolutely useless without a scale of some sort. The feature look small, like maybe on the order of a weld bead but it might be on the order of mill scale but under massive magnification and I have no way to tell.

[galangalalgol]

I think that is the fullered flat of a sword blade, so a couple inches or more across. The pattern exhibits at scales you'd need magnification to see all the way up to bands a mm across. I have a blade that was created using one of the reproduction processes. I have heard some say it is simply a very specific type of alloy banding.

[galangalalgol]

I will add that while it cuts well and has good abrasion resistance, it isn't anomalously better than modern tool steel.