the resemblance to both the kora blade and naga blades was noticed ; I am glad others agree! the venerable seller placed them as resembling the kora and as soon as I saw them I thought they were akin to a naga dha.
I definitely agree on SEA, will do research on your suggestion of area, I feel like they were certainly a pair, I can hope there is a people associated with this style, but it almost seems like a person just had them made, perhaps just in a moment of inspiration.
either way I agree with both of you that these are simply enchanting blades, curious what kind of scabbard you think was utilized? if it was more the open side "backsword" style we could place them as more akin to the naga/ kachin style blades. the wide tip almost eliminates other kinds of scabbard in my mind, but am just a collector not as well read as I would like
thanks for comments!