It probably doesn't have even 62 years of circulation. It would be nearly flat if it did. Probably more like 10-15 years of circulation then sat...
Agreed that they all look good from the pictures. Why the distinction between pre-1900 and post-1900 90%?
You've owned it for nearly half of its life!!
Here's a blogpost I recently wrote on the subject: http://numismatics.org/pocketchange/counterfeiter/
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