Terminology Used On This Site

Terminology Used on This Site

 

STEP DEVIATION 

This is the actual bending or distortion seen on the stairs as the trail line passes through it.  This causes the steps to appear wavy. The picture below illustrates this effect.

OFFSET DIRECTION

This is the direction, given in degrees that the trail line is moving in.  The below picture shows an offset direction of the trail lines under columns 2 and 3 to be 190 degrees.

WAVY STEPS 

This term is used to describe the affects of the trail lines as they pass through the Memorial building’s stairs. Wavy steps is a trail die and can only be found on the reverse die of the Lincoln cent and then only on the stairs below the columns. The picture below is a strong wavy step die.

TRAILS 

This term is used to describe dies that have a series of parallel, tapered lines, in either one or more directions. Trails can be found on every modern denominational coin. This term includes the die anomaly called wavy steps.

CROSS-OVER TRAILS

This is a trail line that crosses over a design element. It can generate from the same design element or another design element.