A Mysterious Personna???

There has been much discussion on Atlas Quest about this new/old stamp image that has been seen in logbooks all over the country. Many are speculating as to who this identity belongs. Apparently, it's a very small skull that is always stamped in purple ink. After doing some maintenance recently, we have noticed that same image in both our CT and VT logbooks. This must be one traveling letterboxer. Who can this purple headed skull be? We are watching this story very closely!