Has anyone ever seen anything like this on any bill. The anomaly is on the bottom margin and looks like a thinning of the paper stock used.... Please let me know what you think?: *Photo with bill held up in front of light. I have another A* Millennium Note for comparison. It does not have the thinning. Anyone know how this happened? I've had the note for some time so I pretty sure it's not water damage. Also it does not fluoresce in UV. Any help would be appreciated.