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					Originally Posted by David
					
				 I have also found the name Tumbuk Lada  associated with these blades. | 
	
 Hello David,
A tumbok lada (pepper crusher) is a different knife, blade and handle are bigger. See the picture from two examples from my collection, in up a tumbok lada from the Batak, in down a normal sized sewar. 
See also "Traditional Weapons Of The Indonesian Archipelago" under sewar and tumbok lada.
Regards,
Detlef