File:US-00010-One Cent (1974) Aluminum.jpg - Wikipedia

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5 Cents Jefferson Nickel (1st portrait) - United States – Numista

Experimental 1974-D Lincoln cent to see public display

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Graphite: Mineral information, data and localities.

1974 1C Aluminum (Regular Strike) Lincoln Cent (Modern) - PCGS CoinFacts

Smithsonite: Mineral information, data and localities.

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