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					Originally Posted by LOUIEBLADES
					
				 
				Battara 
 
I think that what you may be seeing is just some left over oxidation pattern I tried to fix the picture up but did not see anything. 
 
Lew 
			
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 Thanks for both your postings Lew, i think you ( and Jim and Jens ) are quite right. I am unexperienced in the area, but looking at this blade  steel i don't discern any activity, except for oxidation and or patination. I am posting a bit more enhanced picture, for confirmation.
fernando