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					Originally Posted by MichaelZWilliamson
					
				 That looks very much like someone heated a spot on the edge, either to straighten a deformation, or in attempt to re-harden a spot. | 
	
 This is quite possible. These white spots are result of overheating, either during or after forging. They become permanent part of wootz structure/pattern and once they're formed there is no way to 'remove' them by different etchants or develop better wootz pattern or contrast.