I would think if that were the case we would be seeing more of these swords .
The newer ones should be more common IMO .
The example Ariel shows seems to be quite pitted and has a manufactured blade ; it would surprise me to see a tribe or portion thereof go ga ga over independence to the point of rehilting their traditional swords .
One wonders how thrilled the Sumatran populace as a whole is at being ruled from Jawa anyway .