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			Hi Luc, I am fascinated by these black and white weapons.  There is a member with a black and white Naga? doa.  I will search for the thread.  Can you show a close up of the  blade?  I am not convinced the black is from boiled oil, more from the black iron scale developed in forging.  This also stops rust.  I can understand oil as a dressing, but how dose it make a hard black surface on the metal.
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