Very early (left) has hand welds and different metal work. Also the pinching on the edge has a different pattern.
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Thanks, would NEVER have known!
My guess would be vendor change or improved mfg. technique being applied. My early 70MY has the hand brazed seams with lumps and bumps. I thought they were all like that. Good observation !
QUOTE(Garland @ May 16 2016, 10:31 PM) 
Very early (left) has hand welds and different metal work. Also the pinching on the edge has a different pattern.
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Very interesting. Now that I think about it, yeah there were craftsman differences. Great catch!
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