Lovely barung Rick. It has a really interesting blade. I'm not at all an expert in how these are forged, but it seems that the initial billet was divided in two down the long axis of the blade where the long forging line appears, then forged out from there. It seems there was a central core of (? softer) steel or iron, surrounded by a (? hardened) steel layer. I've circled what I think are the area of "blotches," but are these really inclusions like on Kai's example? Am I looking at the right area? The edge has a lot of lamination activity, and its hard to know if the circled areas are just lamination or are inclusions.
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