Could this be Chinese ?

[Peter Dekker]

Hi guys,

That's a very nice set of hudiedao you got there. I also very much like the engravings on the blade, thanks for sharing.

As for the exact file work on the back, file work of many kinds is quite common in China but I meant something really close to this knife in a Beijingnese oxtail.

Unfortunately I can't seem to find pics of the exact niuweidao I had in mind but here what's perhaps best described as a Chinese falchion I've had with similar features. Only, the dips between the segments of file work are less deep on these. On that oxtail, they were as deep as on the knife that is the subject of this thread.