Join Date: Jun 2009
1) Yes, Greneng is Sumatran.
2) In case it is an old blade, it quite surely was longer.
The overall blade shape looks very strange. Also condition looks at least a bit suspicious - Tikel Alis almost disappeared (or very shallow and disproportionally small), the last, ...khem, let's call it Ri Pandan for the moment, on Ron Dha Nunut (before Gonjo) absolutely intact.
Do the edges of Gonjo have a smooth feel?