What a magnificent piece!
The blade impresses me most, one of the nicest I have ever seen!
On the dot on the blade - I suppose. I think it's hard to tell for sure really.
Regarding the distinctions between Maranao and Maguindanao - it is very difficult. Sometimes in okir they are identical, sometimes there are small subtleties. The blade differences are easier.
Yes definitely nobility. On the subject of flea markets, well, only one semi recent find for me, but that got stolen.......
