Yeah, I did say "core", didn't I?
Rick, from the photo I can't tell if the steel edges are formed by a piece of steel running all the way through, or by edges being welded in. Both methods are used in keris construction in the Indonesian produced blades.
Where an edge is welded in, rather than provided by use of the sandwich method, the pamor material and the edge material are brought together as two "V"'s, and then welded.
Let me try to be a little more precise:-
this blade appears to have edges of steel that protrude from material that has been manipulated by twisting; I would be happy to call the manipulated material pamor.
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