Traditional collections consist of all dates within a series such as state quarters or Lincoln cent.

Zinc is the primary metal used in making Lincoln cent since 1982 .

The 1970 Lincoln cent with the raised 7 is also the result of die polishing.

Below is a counter stamped Lincoln cent with a number 2 in a bar shape outline.

These experiments used various designs, since actual Lincoln cent dies could not leave government custody.

The Lincoln cents have come down to us since then in one of three forms.

The composition of the Lincoln cent was changed in 1943.

The first Lincoln cent was produced in 1909 and carried wheat ears patterns on the reverse side.

For example, on a Lincoln cent, the head covers about one-sixth of the area.

In fact, before the introduction of the Lincoln cent, changes in coin design were common.