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					Originally Posted by fernando
					
				 
				Hi David 
We are together in this one. Have you read (my) post #11 ?    
			
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 Your right 'Nando, I sometimes 'speed read' and miss relevent facts  

  Guilty as charged .....but yes, BOTH agreed  

  The angle of the 'serrations' would aid the fracture of the 'blade' .....I can see no other reason to deliberately weaken the blade/point . I would also assume that it could be used against flesh and bone in a self defence situation as well.
 As a footnote.    I would also assume that the 'blade' on this is high carbon steel.....two reasons, the first is that a harder steel will 'bite' better in the softer iron/bronze and remain lodged in the cannon. Secondly the high carbon steel would be more brittle and prone to fracture....especially where the 'serrations' are placed
  All the best, my friend
                                      David