CURSES!
You outbid me on this one!
Well, some deep breathing and I am (almost) calm....
As a rule, kattaras have very thin and "whippy" blades; I had a feeling that this one might be a bot "stabler" than usual. Am I right?
As to the "wolf-mark" it looks absoltely real, but the location is strange: in the middle of the blade. Usually, those were stamped on the ricasso... Would not be surprised if it was a locally-made blade (which is even better from my point of view!).
Enjoy it!