Hi Micheal,
love the blade
Personally, I would etch the blade, with the pattern so clearly visible now.....suggests that it has always been that way.
Interesting that the 'running wolf' mark has been used, presumedly to signify quality and was 'locally' marked.
The blade seems to be thicker ...and therefore stiffer than the usual 'springy' blades ....is that the case. Perhaps this seemingly 'atypical' blade was a 're-work' from a different sword?
All the best
David