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Posted 10/11/2010 10:08 pm
A microscopic analysis would probably reveal whether it is part of the alloy or whether it was an extraneous bit of metal rolled into the bronze cent stock. I do find it interesting that it has a "comet-like" appearance with an obvious beginning at the hair curl and fading as it trails away towards ES. That would seem to fit the profile of foreign metal rolled into the stock and smeared as the stock is rolled out to proper thickness.
