Wavy steps and trails

It took until 1999 to include the rest of the denominational coins' dies to be produced by this method.

This anomaly, known as "wavy steps" or "trails", is considered a variety type error since it is found on every coin that the particular affected die produces.

Up to 2011, over 1,200 examples of dies affected with this anomaly have been found on cents, nickels, dimes, quarters, and dollars.

The first wavy step die was discovered in 1995 on a 1994 Lincoln cent from the Philadelphia mint.

Comparison of other dies that carried both "wavy steps" and "trails" showed that the lines from both anomalies traveled in the same exact direction.