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				is its role first and foremost as a weapon of execution or as a symbol of power?
			
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 From what I understand, it's mainly a sign of power and status - you don't need an extra long blade for this way of execution. If I understand correctly, regular-sized Keris Jawa were used on Java for this purpose. Can our experts in things Jawa verify this, please?
Another hypothesis I came across was that the long blade evolved in response to the European rapiers when Portugese/etc. ships arrived at the scene...  
 
Regards,
Kai