What or who do you consider a "pro"? (Never mind I thought I was responding to the OP.)
You say it weighs more than a regular dime. What does it weigh?
I see no doubling in the images. What I do see appears to be a corroded environmentally discolored normal dime. (Opinion of someone who is not a "Pro", but I'm pretty good.

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Edited by Conder101
12/19/2012 2:00 pm