Shashka: wootz???

[ariel]

Folks, I need your help, especially the "metallurgists"
I have a shashka ( no scabbard). The blade is of obviously "European" pattern, but very light and very "bendable" ( returns to true like a lightning). It has no markings.
What is interesting here is the blade , and I cannot decide, is it a Sham-type wootz ( bulat) or mechanical damascus.
If it is wootz, it would most likely be of Anosov's-era Zlatoust production, a rarity. If mechanical, could anybody suggest the source of such a pattern. Obviously, it is no superficial etching; the pattern is seen thru the blade, spine included.
Will be most grateful for opinions.