Origins of the Keris?

[David]

Hi Orang Lama. We don't generally discuss non-keris items on the keris page and my inclination is to transfer this to the Ethnographic Forum. But if i understand you correctly from how you titled this thread you seem to be enquiring if these blades could be a forerunner to the keris??? I do see the similarity in form, but don't personally feel fully qualified to give a substantiated answer here. So i will allow the discussion to continue as long as it stays focussed on keris, though i suspect it will end up in the Ethno Forum soon enough.
My gut response is no, these are not related to keris, and any similarities are merely coincidental, but perhaps some of our more knowledgable members have a different opinion on than. I have never heard or read of anyome relating the origin of keris to Japanese edged weapons.
It would be helpful to know to what era the Kyoto National Museum dated these. Also they appear different from what i am seeing as Hoko spearheads when i search.