Lincoln Wheat Cent

1909–1958

Weight by Period

1909–1942 · 3.11 grams
1943 Steel Cent · 2.70 grams
1944–1958 · 3.11 grams

Diameter 

19 mm

Composition 

1909–1942 · 95% copper, 5% tin & zinc
1943 · Zinc-coated steel
1944–1958 · Primarily copper alloy*

Mints

Philadelphia, Denver, San Francisco