Smenkhkare's Coffin

Origin
Smenkhkare was a short-lived pharaoh during the Amarna Period of Akhenaten. Very little is known about his rule due to the subjected erasure of records of this period by later pharaohs, such as Horemheb.

It was traded for two kidnapped Warehouse 12 agents along with Themistocles' Ostracon, James Tilly Matthew's Air Loom and Simonides of Ceos' Tally Stick.

Effects
When a person steps inside it, almost all information on them known to the world is erased. This includes files, monuments and eventually the memories of everyone said person had contact with.