Multimedia Gallery - This image shows copper in ore. The penny is 97.5 percent zinc and 2.5 percent copper.

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Your penny may be worth $18,000 - the exact 'small date' error to

Is it legal to use pennies to make jewelry? - Quora

Solved A U.S. penny is composed of 97.5% Zinc and 2.5%

Dissolving Pennies – Science On

Solved 4. Modern pennies are made of 97.5% zinc and 2.5 %

Collector finds rare bronze 1983 Lincoln cent in circulation

Multimedia Gallery - This image shows copper in ore. The penny is

Canada Drops the Penny, but Will the U.S.? - The New York Times

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Your penny may be worth $18,000 - the exact 'small date' error to

Solved Part A An American penny is 97.5% zinc and 2.5%

Pressed Penny Minted Date Comparison