Lincoln Memorial Cent Small CentsCopper Alloy Penny (1959-1982)Designer – Engraver: Frank Gasparro Metal Composition: 95% Copper – 5% Tin and ZincDiameter: 19 mm Mass / Weight: 3.11 gramsCopper Plated Zinc Penny (1982-2009)Designer – Engraver: Frank GasparroMetal Composition: 97.5% Zinc – 2.5% Copper after 1982Diameter: 19 mmMass / Weight: 2.5 grams