The direction of movement is approximately 330 degrees and is indicated by the slight trail seen on the top of the left urn. This movement also shows on the tops of the columns and very slightly on the top of Lincoln's head.
If you look at the stairs on the Lincoln Memorial building, you will see that they are mushy for about 2/3 of the way from the top with only the last bottom 1/3 showing any step definition. Without the columns affecting the stairs, there will be no step deviation.
The EPU, UNITED and STATES also show the affects of trails with letter distortion.
Is this die important? Yes it is for it does confirm that wavy steps can happen in the opposite direction and adds to the list of facts that these anomalies are a variety die unto themselves and not a doubled die.
BJ Neff