Bringing out an oldy for comment

[Alam Shah]

Originally Posted by BluErf

... The outer soft steel layer could have been made from a file, in my opinion, because of the cross-hatching on the central portion of the base, and on the high point of the gandik.

Hmmm... I think initially the file might be shaped via 'stock removal' method, and later maybe heat-treated(?) but not the entire blade. Perhap an etch could reveal the etch mark, as kai suggested.

A question. How the high-point on the gandik was constructed and shaped?

Originally Posted by BluErf

... I think this is still a 'san-mai' construction keris, with the softer steel outer layers sandwiching a harder steel core..

Another question. If it is sandwiched, why wasn't the base of the blade also sandwiched?