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					Originally Posted by Ed  Good catch.  I see some subtle signs of it being wound.  What alerted you to it? | 
	
 It is very subtle but i have been fortunate to handle quite a few of barrels from all ages.
Attached picture showes the lines in the iron which makes me think this is indeed wound iron 

Could you make a picture from the inside of the barrel bore? Most likely it is very irregular.