This is one of the many skulls that were seen in the Season 5 episode "Into the Schwarzwald" (5.12) where Nick and Monroe fall into the catacombs of the ancient church, where they find a small brass chest. There were so many skulls in that episode that it would be hard to screen match the right one. Still a cool prop to have, it looks *really* awesome! Thanks to screencapped.net for the last 2 pictures!
