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The Composition of Pennies Pre-1982 and Post-1982

The Composition of Pennies Pre-1982 and Post-1982. Tim Cumming & Caitlin Carmody. Timeline of the Penny. Composition pure Copper from 1793 to 1837 From 1837 to 1857, 95 % Cu, 5 % Sn and Zn In 1857, 88 % Cu, 12 % Ni 1864 to 1962, 95 % Cu, 5 % Sn and Zn In 1962, 95 % Cu and 5 % Zn

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The Composition of Pennies Pre-1982 and Post-1982