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Old 08-14-2011, 01:07 AM
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John F. John F. is offline
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Default All-copper pennies...

"When using a penny to scrape larger sections of rust, be sure it is a "copper" penny, I believe you have to get back to the 50's to get one that is all copper."

The cut-off date for the 95% copper pennies is 1981 and before.

Hope this helps!

John
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