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

Lead - Wikipedia

1974 Aluminum Lincoln Cent

1 Dollar - Elizabeth II (Winnipeg) - Canada – Numista

1 Cent 1974 Lincoln Memorial (Pattern) - United States – Numista

References - The Origin and Nature of Life on Earth

United States Cent, 1974 (aluminum), SI Neg. 2005-27306. Da…

George Washington Presidential $1 Coin

Smithsonite: Mineral information, data and localities.

Penny - Wikipedia

1977 Lincoln Cent Struck on an Aluminum Planchet At The U.S. Mint in Philadelphia 1.04 Grams UNIQUE Cent MS 60 NGC : Everything Else