Molly looks at the head as he tilts it back and forth. The dark hair on the head, also preserved, moves back and forth.

"Well, if it is real, whoever did the preservation must have been experienced and had the right tools," she said as she looks closely at the specimen. Which points to a professional. "It's possible that maybe this was a case of someone leaving their body to science and being preserved for a university or medical school. But even so, it would have been rare - to preserve a human head.

"Maybe there are other documents or specimens in the collection that might help us date it."